List of scientific papers(since 1993)　　　　　　Review. & Books

Synthesis of conjugated polymers with controlled terminal structures by direct arylation polycondensation and correlation between terminal structures and emission properties, Ziwei Hu, Takeshi Yasuda, Takaki Kanbara, and Junpei Kuwabara, Macromol. Chem. Phys. 226, 2400506 (8 pages) (2025).

Synthesis of Bithiazole-Based Poly(arylenevinylene)s via Co-Catalyzed Hydroarylation Polyaddition and Tuning of their Optical Properties by N-Methylation and N-Oxidation, Boya Li, Ryota Iwamori, Junpei Kuwabara, Takeshi Yasuda and Takaki Kanbara, Macromol. Rapid Commun., 46, 2401082 (7 pages) (2025).

Synthesis of Tetraaryl Diazachrysenes via the Povarov Reaction and π Extension to Construct a Condensed Azaperylene Motif, Yuanrong Shan, Takeshi Yasuda, Takaki Kanbara, and Junpei Kuwabara, Asian J. Org. Chem., 14, e202400625 (7 pages) (2025).

Molecular design and synthesis of narrow-bandgap poly(thienylenevinylene)s via Co-catalyzed hydroarylation polyaddition, Ryota Iwamori, Kenta Miyata, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, Synth. Met., 311, 117817 (8 pages)(2025).

Spontaneous Formation of π-Conjugated Polymeric Colloidal Molecules through Stepwise Coacervation and Symmetric Compartmentalization, Osamu Oki, Shun-ichiro Noguchi, Sota Nakayama, Hiroshi Yamagishi, Junpei Kuwabara, Takaki Kanbara, and Yohei Yamamoto, Small, 21, 2404934 (8 pages)(2025).

Regioselective Synthesis of Pyrrole-based Poly(arylenevinylene)s via Mn-Catalyzed Hydroarylation Polyaddition, Kakeru Tsukahara, Ryota Iwamori, Junpei Kuwabara, and Takaki Kanbara, Macromol. Rapid Commun., 45, 2400456 (6 pages) (2024).
(Selected as a Hot Topic: Earth-Abundant Transition Metal Catalysis of Wiley)

Molecular Design of Naphthalene- and Carbazole-Based Monomers for Regiospecific Synthesis of Poly(arylenevinylene)s via Co-catalyzed Hydroarylation Polyaddition, Ryota Iwamori, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, Macromol. Rapid Commun., 45, 2400168 (6 pages) (2024).

Mechanistic Study on the Reductive Elimination of (Aryl)(fluoroaryl)palladium Complexes: A Key Step in Regiospecific Dehydrogenative Cross-coupling, Tomoki Iida Ryota Sato Yusuke Yoshigoe, Takaki Kanbara, and Junpei Kuwabara, Dalton Trans., 53, 13340–13347 (2024).
(Selected as a HOT Article of Dalton Transactions)
(Inside Front cover image of the journal)

Near-unity angular anisotropy of circularly polarized luminescence from microspheres of monodispersed chiral conjugated polymer, Sota Nakayama, Hiroshi Yamagishi, Osamu Oki, Soh Kushida, Junhui Chen, Junpei Kuwabara, Takaki Kanbara, Wijak Yospanya, Reiko Oda, and Yohei Yamamoto, Chem. Commun., 60, 7634–7637 (2024).

Nonstoichiometric Direct Arylation Polymerization of Octafluorobiphenyl with 2,7-Diiodofluorene for Regulating C-H Terminals of π-Conjugated Polymer, Lisa Takimoto, Taiki Goto, Junhui Chen, Junpei Kuwabara, and Takaki Kanbara, Macromol. Rapid Commun., 45, 2300225 (5 pages) (2024).

Effect of Substituent Introduction on Phenanthroline Ligands in the Zinc Complex-catalyzed Synthesis of Organic Carbamate from CO2 Using Tetramethyl Orthosilicate, Katsuhiko TAKEUCHI, Kei TAKAHASHI, Yusuke ISHIZAKA, Hiroki KOIZUMI, Haruki NAGAE, Kazuhiro MATSUMOTO, Norihisa FUKAYA, Junpei KUWABARA, Takaki KANBARA, Jun-Chul CHOI, J. Jpn. Petrol., 66, 185-188 (2023).

Regioselective synthesis of thiophene-based poly(arylenevinylene)s via Co-catalyzed hydroarylation polyaddition, Ryota Iwamori, Junpei Kuwabara, Takeshi Yasuda, Takaki Kanbara, Macromolecules, 56, 5407–5414 (2023).

Flexible and Red-Emissive Organic Single-Crystal Microresonator for Efficient Active Waveguides, Takumi Matsuo, Junpei Kuwabara, Takaki Kanbara and Shotaro Hayashi, J. Phys. Chem. Lett., 14, 6577−6582 (2023).

Synthesis of Triazatriphenylene Derivative Through Multi-Component Reaction of Aryl-amine, Aldehyde, and Alkyne, Sachie Yamamoto, Naruki Ishida, Takeshi Yasuda, Takaki Kanbara, Junpei Kuwabara, Asian J. Org. Chem. 12, e202300181 (7 page) (2023).

Straightforward and regiospecific synthesis of 1,3,5,7-tetra-arylated acene bearing different aryl groups, Ryota Sato, Kunfeng Chen, Takeshi Yasuda, Takaki Kanbara, and Junpei Kuwabara, Org. Chem. Front., 10, 2955–2962 (2023).

Facile synthesis of bis-pentafluoroarylated anthracene derivatives for n-type organic field-effect transistor applications, Ryota Sato, Takeshi Yasuda, Takanobu Hiroto, Takaki Kanbara, and Junpei Kuwabara, Chem.Eur.J., 2023, 29, e202203816 (5 pages).

Direct Arylation Polycondensation for Synthesis of Medium-Bandgap Polymer Donors (PBDB-T) for Organic Photovoltaics, Junpei Kuwabara, Kota Hiyaji, Shuyang Guo, Xin Jiang, Takeshi Yasuda, and Takaki Kanbara, Polym. J., 55, 395–404 (2023).

One-pot two-step cross-dehydrogenative-coupling polycondensation for synthesis of tetrafluorobenzene-based conjugated polymer, Naoki Onda, Ryota Sato, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, Synthetic Metals, 293, 117279 (5 page) (2023).

Unusual Regioselectivity of Pd-Catalysed Cross-Dehydrogenative Coupling Reaction of Simple Polyaromatic Hydrocarbons with Polyfluoroarenes, Ryota Sato, Tomoki Iida, Takaki Kanbara, and Junpei Kuwabara, Chem. Commun., 58, 11511–11514 (2022).
(Inside cover image of the journal)

Tracking side reactions of the inverse vulcanization process and developing monomer selection guidelines, Yusuke Onose, Yuri Ito, Junpei Kuwabara, and Takaki Kanbara, Polym. Chem., 13, 5486-5493 (2022).

Facile synthesis of 1,7-phenanthroline derivatives and evaluation of their properties as hole-blocking materials in organic light-emitting diodes, Sachie Yamamoto, Takeshi Yasuda, Takaki Kanbara, and Junpei Kuwabara, Bull. Chem. Soc. Jpn., 95, 458–465 (2022).
(BCSJ Award Article)
(Front cover image of the journal)

Nonstoichiometric hydroarylation polyaddition for synthesis of pyrrole-based poly(arylenevinylene)s, Ryota Iwamori, Ryota Sato, Junpei Kuwabara, and Takaki Kanbara, Polym. Chem., 13, 379–382 (2022).
(Selected as a HOT Article of Polym. Chem.)
(Front cover image of the journal)

Direct Evidence of Internal Deterioration Mechanism due to Molecular Chain Ends in Polymer Solar Cells by Operando Spin Detection, Haruka Asai, Dong Xue, Shinpei Kamiya, Junpei Kuwabara, Takaki Kanbara, and Kazuhiro Marumoto, ACS Appl. Polym. Mater., 4, 607-617 (2022).

Hydrogen-bonded dimers of mono-alkylated diketopyrrolopyrroles and their physical properties, Junpei Kuwabara, Ryuya Kawasaki, Takeshi Yasuda, and Takaki Kanbara, Synth. Met, 284, 117007 (2022).

Synthesis of azine-based conjugated polymers by metal-free dehydration polycondensation and characterization of their physical properties, Hiroki Murakami, Kyoya Kobayashi, Keita Suzuki, Takeshi Yasuda, Takaki Kanbara, and Junpei Kuwabara, Macromolecules, 54, 11281-11288 (2021).

Synthesis of pyrrole-based poly(arylenevinylene)s via Co-catalyzed hydroarylation of alkynes, Ryota Iwamori, Ryota Sato, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, Macromol. Rapid Commun., 42, 2100283 (2021).

One-Pot Synthesis of Triazatriphenylene Using the Povarov Reaction, Sachie Yamamoto, Zong Yang Zhou, Goki Hiruta, Katsuhiko Takeuchi, Jun-Chul Choi, Takeshi Yasuda, Takaki Kanbara, and Junpei Kuwabara, J. Org. Chem., 86, 7920-7927 (2021).

Algae-inspired, Sulfur-based Polymer with Infrared Transmission and Elastic Function, Junpei Kuwabara, Kaho Oi, Makoto M. Watanabe, Takashi Fukuda and Takaki Kanbara, ACS Appl. Polym. Mater., 2, 5173–5178 (2020).

Facile Access to Conjugated Polymers under Aerobic Conditions via Pd-Catalyzed Direct Arylation and Aryl Amination Polycondensation, Xi Chen, Akito Ichige, Junhui Chen, Iori Fukushima, Junpei Kuwabara, and Takaki Kanbara Polymer, 207, 122927 (2020).

Air-stable Pd(0) catalyst bearing dual phosphine ligands: a detailed evaluation of air stability and catalytic property in cross-coupling reactions, Ryota Sato, Takaki Kanbara, and Junpei Kuwabara, Dalton Trans., 49, 12814–12819 (2020).

Mechanistic Study of Pd/Ag-Dual Catalyzed Cross Dehydrogenative Coupling of Perfluoroarenes with Thiophenes, Yuto Shimoyama, Junpei Kuwabara, and Takaki Kanbara ACS Catal., 10, 3390-3397 (2020).

Synthesis of an Air-Stable Pd(0) Catalyst Bearing Donor and Acceptor Phosphine Ligands, Ryota Sato, Takaki Kanbara, and Junpei Kuwabara, Organometallics, 39, 235−238 (2020).
(Highlighted in the most read articles of Organometallics)
(Inside cover image of the journal)

Effect of Purification Solvent on Polymer Impurities and Device Performance, Shunsuke Kodama, Junpei Kuwabara, Xin Jiang, Iori Fukushima, and Takaki Kanbara, ACS Appl. Polym. Mater., 1, 2083-2088 (2019).
(Inside cover image of the journal)

Synthesis of Conjugated Polymer Consisting of Three-Component Aromatic Units via Two-Step Cross-Dehydrogenative-Coupling Reactions, Chie Tanaka, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, Synth. Met., 254, 180-183 (2019).

Synthesis and characterization of sulfur-based polymers from elemental sulfur and algae oil, Shuhei Oishi, Kaho Oi, Junpei Kuwabara, Ryo Omoda, Yuichi Aihara, Takashi Fukuda, Toshikazu Takahashi, Jun-Chul Choi, Makoto Watanabe, and Takaki Kanbara, ACS Appl. Polym. Mater., 1, 1195-1202 (2019).

Synthesis of Conjugated Polymers via Direct C–H/C–Cl Coupling Reactions Using a Pd/Cu Binary Catalytic System, Junpei Kuwabara, Wataru Tsuchida, Shuyang Guo, Ziwei Hu, Takeshi Yasuda, and Takaki Kanbara, Polym. Chem., 10, 2298-2304 (2019).

Postfunctionalization of reactive polyolefins derived from fatty acids, Kazuhisa Ohtake, Yusuke Onose, Junpei Kuwabara and Takaki Kanbara, React. Funct. Polym., 139, 17-24 (2019).

[Pd(4‑R₃Si-IPr)(allyl)Cl], a Family of Silyl-Substituted Pd−NHC Complexes: Catalytic Systems for the Buchwald−Hartwig Amination, Norihisa Fukaya, Tomoteru Mizusaki, Kouhei Hatakeyama, Yuto Seo, Yuuya Inaba, Kazuhiro Matsumoto, Vladimir Ya. Lee, Yukio Takagi, Junpei Kuwabara, Takaki Kanbara, Yoong-Kee Choe, and Jun-Chul Choi, Organometallics, 38, 375-384 (2019).

Synthesis and characterization of a thermally cross-linkable polyolefin from oleic acid, Kazuhisa Ohtake, Yusuke Onose, Junpei Kuwabara and Takaki Kanbara, J. Polym. Sci.: Part A: Polym. Chem., 57, 85-89 (2019).

Synthesis of Polyfluoro Arylene-based Poly(arylenevinylene)s via Pd-catalyzed Dehydrogenative Direct Alkenylation, Hitoshi Saito, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, Macromol. Rapid Commun., 39, 1800414 (2018).

Facile Synthesis of Thienopyrroledione-based π-Conjugated Polymers via Direct Arylation Polycondensation under Aerobic Conditions, Akito Ichige, Hitoshi Saito, Junpei Kuwabara, Takeshi Yasuda, Jun-Chul Choi, and Takaki Kanbara, Macromolecules, 51, 6782-6788 (2018).

Organic Light-Emitting Diodes Using Octafluorobiphenyl-Based Polymer Synthesized by Direct C−H/C−H Cross Coupling Reaction, Takeshi Yasuda, Hideaki Aoki, Junpei Kuwabara, and Takaki Kanbara, J. Photopolym. Sci. Technol., 31, 323-327 (2018).

Synthesis of bithiazole-based semiconducting polymers via Cu-catalysed aerobic oxidative coupling, Alanna Faradhiyani, Qiao Zhang, Keisuke Maruyama, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, Mater. Chem. Front., 2, 1306-1309 (2018).

Multi-molecular emission of a cationic Pt(II) complex through hydrogen bonding interaction, Kaho Yamaguchi, Kazuma Yamawaki, Takuya Kimura, Junpei Kuwabara, Takeshi Yasuda, Yoshinobu Nishimura, and Takaki Kanbara, Dalton Trans., 47, 4087-4092 (2018).

FRET-mediated near infrared whispering gallery modes: Studies on the relevance of intracavity energy transfer with Q-factor, Osamu Oki, Soh Kushida, Annabel Mikosch, Kota Hatanaka, Youhei Takeda, Satoshi Minakata, Junpei Kuwabara, Takaki Kanbara, Thang D. Dao, Satoshi Ishii, Tadaaki Nagao, Alexander J. C. Kuehne, Felix Deschler, Richard Friend, and Yohei Yamamoto, Mater. Chem. Front., 2, 270-274 (2018).

Synthesis of Conjugated Polymers Containing Octafluorobiphenylene Unit via Pd-Catalyzed Cross-Dehydrogenative-Coupling Reaction, Hideaki Aoki, Hitoshi Saito, Yuto Shimoyama, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, ACS Macro Lett., 7, 90-94 (2018).
(Press release from Univ. Tsukuba)
(Highlighted in the most read articles of ACS Macro Letters)

From Linear to Foldamer and Assembly: Hierarchical Transformation of Coplanar Conjugated Polymer into Microsphere, Soh Kushida, Osamu Oki, Hitoshi Saito, Junpei Kuwabara, Takaki Kanbara, Motomichi Tashiro, Michio Katouda, Yutaka Imamura, and Yohei Yamamoto, J. Phys. Chem. Lett., 8, 4580-4586 (2017).

Modulation of the emission mode of a Pt(II) complex via intermolecular interactions, Junpei Kuwabara, Kaho Yamaguchi, Kazuma Yamawaki, Takeshi Yasuda, Yoshinobu Nishimura, and Takaki Kanbara, Inorg. Chem., 56, 8726-8729 (2017).

Luminescent Ir(III) complexes bearing benzothiazole or benzoxazole-based pincer ligand, Junpei Kuwabara, Tomomi Namekawa, Eiko Sakabe, Masa-aki Haga, and Takaki Kanbara, J. Organomet. Chem., 845, 189-195 (2017).

Facile One-pot Access to π-Conjugated Polymers via Sequential Bromination/Direct Arylation Polycondensation, Hitoshi Saito, Jieran Chen, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, Polym. Chem., 8, 3006-3012 (2017).

Direct Arylation Polycondensation for Synthesis of Bithiazole-based Conjugated Polymers and Their Physical Properties, Junpei Kuwabara, Masahiro Kuramochi, Songlin Liu, Takeshi Yasuda, and Takaki Kanbara, Polym. J., 49, 123-131 (2017).
(SPSJ Award for the Outstanding Paper in Polymer Journal sponsored by ZEON )

Suppression of Homo-coupling Side Reactions in Direct Arylation Polycondensation for Producing High Performance OPV Materials, Junpei Kuwabara, Yohei Fujie, Keisuke Maruyama, Takeshi Yasuda, and Takaki Kanbara, Macromolecules, 49, 9388-9395 (2016).

Synthesis of n-type semiconducting polymer consisting of benzodipyrrolidone and thieno-[3,4-c]-pyrrole-4,6-dione via C-H direct arylation, Zhi An Wang , Junpei Kuwabara, Akito Ichige, Takeshi Yasuda, and Takaki Kanbara, Synth. Met., 222, 383-387 (2016).

Enwrapping Conjugated Polymer Microspheres with Graphene Oxide Nanosheets, Yusuke Aikyo, Soh Kushida, Daniel Braam, Junpei Kuwabara, Takahiro Kondo, Takaki Kanbara, Junji Nakamura, Axel Lorke, and Yohei Yamamoto, Chem. Lett., 45, 1024-1026 (2016).

Photovoltaic Properties of Bithiazole-Based PolymersSynthesized by Direct C-H Arylation, Takeshi Yasuda, Junpei Kuwabara, Liyuan Han, and Takaki Kanbara, J. Photopolym. Sci. Technol., 29, 347-352 (2016).

Synthesis of Conjugated Polymers Possessing Diketopyrrolopyrrole (DPP) Units Bearing Phenyl, Pyridyl, and Thiazolyl Groups by Direct Arylation Polycondensation: Effects of Aromatic Groups in DPP on Physical Properties, Junpei Kuwabara, Naoto Takase, Takeshi Yasuda, and Takaki Kanbara, J. Polym. Sci.: Part A: Polym. Chem., 54, 2337-2345 (2016).

Conjugated Polymer Blend Microspheres for Efficient, Long-Range Light Energy Transfer
Soh Kushida, Daniel Braam, Thang Duy Dao, Hitoshi Saito, Kosuke Shibasaki, Satoshi Ishii, Tadaaki Nagao, Akinori Saeki, Junpei Kuwabara, Takaki Kanbara, Masashi Kijima, Axel Lorke, and Yohei Yamamoto, ACS Nano, 10, 5543-5549 (2016).

Synthesis of Pyrrole-based Poly(arylenevinylene)s via Rh-Catalyzed Dehydrogenative Direct Alkenylation, Hitoshi Saito, Junpei Kuwabara, Takeshi Yasuda, and Takaki Kanbara, Polym. Chem., 7, 2775-2779 (2016).

Effects of the Terminal Structure, Purity, and Molecular Weight of an Amorphous Conjugated Polymer on Its Photovoltaic Characteristics, Junpei Kuwabara, Takeshi Yasuda, Naoto Takase, and Takaki Kanbara, ACS Appl. Mater. Interfaces, 8, 1752-1758 (2016).

Optically induced mode splitting in self-assembled, high quality-factor conjugated polymer microcavities, Daniel Braam, Soh Kushida, Robert Niemoller, Gunther Prinz, Hitoshi Saito, Takaki Kanbara, Junpei Kuwabara, Yohei Yamamoto, and Axel Lorke, Sci. Rep., 6, 19635/1?6 (2016).

Selectivity of Reaction Sites for Direct Arylation Polycondensation in Bithiophene Derivatives, Yohei Fujie, Junpei Kuwabara, and Takaki Kanbara, Mol. Cryst. Liq. Cryst., 622, 14-18 (2015).

Emission from Charge-Transfer States in Bulk Heterojunction Organic Photovoltaic Cells Based on Ethylenedioxythiophene-Fluorene Polymers, Takeshi Yasuda, Junpei Kuwabara, Liyuan Han, and Takaki Kanbara, Mol. Cryst. Liq. Cryst., 620, 107-111 (2015).

Direct Arylation Polycondensation of Thienothiophenes with Various Dibromoarylenes, Tatsuya Kumada, Yuta Nohara, Junpei Kuwabara, and Takaki Kanbara, Bull. Chem. Soc. Jpn., 88, 1530-1535 (2015).
(BCSJ Award Article)

Facile Synthesis of Fluorene-based π-Conjugated Polymers via Sequential Bromination/Direct Arylation Polycondensation, Hitoshi Saito, Junpei Kuwabara, and Takaki Kanbara, J. Polym. Sci.: Part A: Polym. Chem., 53, 2198-2201 (2015).

Improved power conversion efficiency of bulk-heterojunction organic photovoltaic cells using neat C70 as an effective acceptor for an amorphous π-conjugated polymer, Takeshi Yasuda, Junpei Kuwabara, Liyuan Han, and Takaki Kanbara, Org. Electron., 25, 99-104 (2015).

Mechanistic Studies and Optimisation of a Pd-catalysed Direct Arylation Reaction Using Q1 Phosphine-free Systems, Junpei Kuwabara, Masaru Sakai, Qiao Zhang and Takaki Kanbara, Org. Chem. Front., 2, 520-525 (2015).

Synthesis of Bithiazole-based Crystalline Polymers via Pd-Catalyzed Direct C?H Arylation, Wei Lu, Junpei Kuwabara, Masahiro Kuramochi, and Takaki Kanbara, J. Polym. Sci.: Part A: Polym. Chem., 53, 1396-1402 (2015).
(Cover Image of the journal)

The Effect of Solvent in Direct Arylation Polycondensation of Substituted Thiophenes, Junpei Kuwabara, Kohtaro Yamazaki, Takuya Yamagata, Wataru, Tsuchida, and Takaki Kanbara, Polym. Chem., 6, 891-895 (2015).

Microwave-Assisted Polycondensation of 4-Octylaniline with Dibromoarylene, Naoto Takase, Junpei Kuwabara, Seong Jib Choi, Takeshi Yasuda, Liyuan Han, and Takaki Kanbara, J. Polym. Sci.: Part A: Polym. Chem., 53, 536-542 (2015).

Preparation and Characterization of Green Reflective Films of Polyaniline Analogs Containing Azobenzene Units, Hikaru Yamada, Minoru Kukino, Zhi An Wang, Ryo Miyabara, Nobutaka Fujimoto, Junpei Kuwabara, Kiyoto Matsuishi, and Takaki Kanbara, J. Appl. Polym. Sci., 132, 41275/1-7 (2015).

Direct Arylation Polycondensation of Bithiazole Derivatives with Various Acceptors, Masahiro Kuramochi, Junpei Kuwabara, Wei Lu, and Takaki Kanbara, Macromolecules, 42, 7378-7385 (2014).

Aggregation-induced Emission Behavior of a Pincer Platinum(II) Complex Bearing a Poly(ethylene oxide) Chain in Aqueous Solution , Hiroya Honda, Junpei Kuwabara, and Takaki Kanbara, J. Organomet. Chem., 772-773, 139-142 (2014).

Self-assembled Conjugated Polymer Spheres as Fluorescent Microresonators, Kenichi Tabata1, Daniel Braam, Soh Kushida, Liang Tong, Junpei Kuwabara, Takaki Kanbara, Andreas Beckel, Axel Lorke, and Yohei Yamamoto, Sci. Rep., 4, 5902/1-5 (2014).
(Press release from Univ. Tsukuba)

Direct Arylation Polycondensation: A Promising Method for the Synthesis of Highly Pure, High-Molecular-Weight Conjugated Polymers Needed for Improving the Performance of Organic Photovoltaics, Junpei Kuwabara, Takeshi Yasuda, Seong Jib Choi, Wei Lu, Koutarou Yamazaki, Shigehiro Kagaya, Liyuan Han, and Takaki Kanbara, Adv. Funct. Mater., 24, 3226-3233 (2014).
(Press release from Univ. Tsukuba)

Tetramethylbithiophene in π-Conjugated Alternating Copolymers as Effective Structural Component for the Formation of Spherical Assemblies, Liang Tong, Soh Kushida, Junpei Kuwabara, Takaki Kanbara, Noriyuki Ishii, Akinori Saeki, Shu Seki, Seiichi Furumi, and Yohei Yamamoto, Polym. Chem., 5, 3583-3587 (2014).
(Back Cover Picture)

Template-directed Synthesis of Macrocyclic Aminopyridines: Azacalix[n](2,6)pyridines (n = 3, 4), Natsuko Uchida, Ruoxi Zhi, Junpei Kuwabara, and Takaki Kanbara, Tetrahedron Lett., 55, 3070-3072 (2014).

Synthesis and Photophysical Properties of Diketopyrrolopyrrole-based Near-infrared Dyes, Takuya Yamagata, Junpei Kuwabara, and Takaki Kanbara, Heterocycles, 89, 1173-1181 (2014).

Emission Behavior of Secondary Thioamide-based Cationic Pincer Platinum(II) Complexes in Aggregate State, Hiroya Honda, Yasuyuki Ogawa, Junpei Kuwabara, and Takaki Kanbara, Eur. J. Inorg. Chem., 2014, 1865-1869.

Two-Step Direct Arylation for Synthesis of Naphthalenediimide-Based Conjugated Polymer, Yuta Nohara, Junpei Kuwabara, Takeshi Yasuda, Liyuan Han, and Takaki Kanbara, J. Polym. Sci.: Part A: Polym. Chem., 52, 1401-1407 (2014).

Delayed Fluorescence Behaviors of Aminopyridine Oligomers:　Azacalix[n](2,6)pyridines (n = 3, 4) and their Linear Analog, Natsuko Uchida, Tohru Sato, Junpei Kuwabara, Yoshinobu Nishimura, and Takaki Kanbara, Chem. Lett., 43, 459-461 (2014).

Deprotonation-Induced Structural Changes in SNS-Pincer Ru Complexes with Secondary Thioamide Groups, Yoko Komiyama, Junpei Kuwabara, and Takaki Kanbara, Organometallics, 2014, 33, 885-891 (2014).

Optical Properties of Highly Planar Diketopyrrolopyrrole Derivatives Fixed by Coordinate Bonds, Takuya Yamagata, Junpei Kuwabara, and Takaki Kanbara, Tetrahedron, 70, 1451-1457 (2014).

Microwave-Assisted Polycondensation via Direct Arylation of 3,4-Ethylenedioxythiophene with 9,9-Dioctyl-2,7-dibromofluorene, Seong Jib Choi, Junpei Kuwabara, and Takaki Kanbara, ACS Sustainable Chem. Eng., 1, 878-883 (2013).

Synthesis of π-Conjugated Polymer Consisting of Pyrrole and Fluorene Units by Ru-Catalyzed Site-Selective Direct Arylation Polycondensation, Wei Lu, Junpei Kuwabara, and Takaki Kanbara, Macromol. Rapid Commun., 34, 1151-1156 (2013).
(Highlighted in the “Best of Macromolecular Journals 2013”(Wiley-VCH))

Hydrogen-bonding linkage of thymidine derivatives with carboxylic acid and pyridyl groups in a crystalline state, Junichi Hoshino, Junpei Kuwabara, and Takaki Kanbara, J. Nanosci. Nanotechnol., 13, 4593-4600 (2013).

Syntheses, Crystal Structures, and Photophysical Properties of Platinum(II) Complexes Containing a Disulfanenitrile Ligand, Hiroya Honda, Takayoshi Fujii, Junpei Kuwabara, and Takaki Kanbara, Bull. Chem. Soc. Jpn., 86, 608-614 (2013).

Ligand modification of cyclometalated ruthenium complexes in the aerobic oxidative dehydrogenation of imidazolines, Shota Aiki, Yuhei Kijima, Junpei Kuwabara, Ayako Taketoshi, Take-aki Koizumi, Shigehisa Akine, and Takaki Kanbara, ACS Catal., 3, 812-816 (2013).

Direct Arylation Polycondensation for Synthesis of Bithiophene-based Alternating Copolymers, Junpei Kuwabara, Yuta Nohara, Seong Jib Choi, Yohei Fujinami, Wei Lu, Ken Yoshimura, Jun Oguma, Katsuhiro Suenobu, and Takaki Kanbara, Polym. Chem., 4, 947-953 (2013).

Spherical Assemblies from pi-Conjugated Alternating Copolymers: Toward Optoelectronic Colloidal Crystals, Taeko Adachi, Liang Tong, Junpei Kuwabara, Takaki Kanbara, Akinori Saeki, Shu Seki, and Yohei Yamamoto, J. Am. Chem. Soc., 135, 870-876 (2013).

Detailed Optimization of Polycondensation Reaction via Direct C-H Arylation of Ethylenedioxythiophene, Koutarou Yamazaki, Junpei Kuwabara, and Takaki Kanbara, Macromol. Rapid Commun., 34, 69-73 (2013).

Molecular Design of Organic Superbases, Azacalix[3](2,6)pyridines: Catalysts for 1,2- and 1,4-Additions, Natsuko Uchida, Junpei Kuwabara, Ayako Taketoshi, and Takaki Kanbara, J. Org. Chem., 77, 10631-10637 (2012).

Synthesis of 4,4’-Dinonyl-2,2’-bithiazole-base Copolymers via Pd-Catalyzed Direct C-H Arylation, Wei Lu, Junpei Kuwabara, and Takaki Kanbara, Polym. Chem., 3, 3217-3219 (2012).

Synthesis and Characterization of Dioxopyrrolopyrrole Derivatives Having Electron-Withdrawing Groups, Takuya Yamagata, Junpei Kuwabara, and Takaki Kanbara, Eur. J. Org. Chem., 2012, 5282-5290.

Physical and electrical characteristics of supramolecular polymer films based on guanosine derivatives modified with tetrathiafulvalene moiety, Seong Jib Choi, Junpei Kuwabara, and Takaki Kanbara, Polym. J., 44, 946-951 (2012).

Aerobic oxidative dehydrogenations of benzyl alcohols to benzaldehydes by using a cyclometalated ruthenium catalyst, Ayako Taketoshi, Xin Ning Beh, Junpei Kuwabara, Take-aki Koizumi, and Takaki Kanbara, Tetrahedron Lett., 53, 3573-3576 (2012).

Synthesis of pi-Conjugated Polymers Containing Fluorinated Arylene Units via Direct Arylation: Efficient Synthetic Method of Materials for OLEDs, Wei Lu, Junpei Kuwabara, Takayuki Iijima, Hideyuki Higashimura, Hideki Hayashi and Takaki Kanbara, Macromolecules, 45, 4128-4133 (2012).
(Highlighted in the most read articles of Macromolecules)

Two-step changes in luminescence color of Pt (II) complex bearing an amide moiety by mechano- and vapochromism, Seong Jib Choi, Junpei Kuwabara, Yoshinobu Nishimura, Tatsuo Arai, and Takaki Kanbara, Chem. Lett., 41, 65-67 (2012).
(Highlighted in Chem. Lett. Top Ten Accessed Articles)

Synthesis of thiophene- and bithiophene-based alternating copolymers via Pd-catalyzed direct C-H arylation, Yohei Fujinami, Junpei Kuwabara, Wei Lu, Hideki Hayashi, and Takaki Kanbara, ACS Macro Lett.,1, 67-70 (2012).
(Highlighted in the most read articles of ACS Macro Letters)

Luminescent Ir(III) complexes containing benzothiazole-based tridentate ligands: synthesis, characterization, and application to organic light-emitting diodes, Junpei Kuwabara, Tomomi Namekawa, Masa-aki Haga, and Takaki Kanbara, Dalton Trans., 41, 44-46 (2012).
(Highlighted in top ten accessed articles from the online version of Dalton Transactions)
(Introduced as one of the articles from around the world: Japan in Dalton Transactions)

A Resolution Enhancement Material for 193-nm Lithography Comprising 2-Hydroxybenzyl Alcohol and Poly(vinyl alcohol) with Uniform Resist Pattern Shrinkage, Koji Nozaki, Miwa Igarashi, Ei Yano, Seiichi Ishikawa, Hajime Yamamoto, Satoru Asai, and Takaki Kanbara, J. Photopolym. Sci. Technol., 24, 657-665 (2011).

Deprotonation/protonation of coordinated secondary thioamide units of pincer ruthenium complexes: Modulation of voltammetric and spectroscopic characterization of the pincer complexes, Takuya Teratani, Take-aki Koizumi, Takakazu Yamamoto, and Takaki Kanbara, Dalton Trans., 40, 8879-8886 （2011）.

Photoelectrochemical Response of Poly(3-hexylthiophene) and Poly(2,3-diethylquinoxaline-5,8-diyl) in Aqueous Media, Keisuke Saito, Junpei Kuwabara, and Takaki Kanbara, Synth. Met., 161, 1150-1153 (2011).

Changes in redox potential of a nickel-pincer complex bearing reactive secondary thioamide units: Changes caused by deprotonation/protonation reactions on addition of NEt3 and DBU, Takuya Teratani, Take-aki Koizumi, Takakazu Yamamoto, and Takaki Kanbara, Inorg. Chem. Commun., 14, 836-838 (2011).

Polycondensation of Dibromofluorene Analogues with Tetrafluorobenzene via Direct Arylation, Wei Lu, Junpei Kuwabara, and Takaki Kanbara, Macromolecules, 44, 1252-1255 (2011).

Versatile bridging ability of secondary thioamide group for constructing metal cluster based on pincer complex, Ken Okamoto, Junpei Kuwabara, and Takaki Kanbara, J. Organomet. Chem., 696, 1305-1309 (2011).

The catalytic activity of a cyclometalated ruthenium(III) complex for aerobic oxidative dehydrogenation of benzylamines, Shota Aiki, Ayako Taketoshi, Junpei Kuwabara, Take-aki Koizumi, and Takaki Kanbara, J. Organomet. Chem., 696, 1301-1304 (2011).

Enhancement of the Photoluminescence of a Thioamide-based Pincer Palladium Complex in the Crystalline State, Junpei Kuwabara, Yasuyuki Ogawa, Ayako Taketoshi, and Takaki Kanbara, J. Organomet. Chem., 696, 1289-1293 (2011).

Synthesis and Metal-like Luster of Novel Polyaniline Analogs Containing Azobenzene Unit, Minoru Kukino, Junpei Kuwabara, Kiyoto Matsuishi, Takashi Fukuda, and Takaki Kanbara, Chem. Lett., 39, 1248-1250 (2010).

Synthesis, Characterization, and Catalytic Reactivity of a Highly Basic Macrotricyclic Aminopyridine, Natsuko Uchida, Ayako Taketoshi, Junpei Kuwabara, Toshihide Yamamoto, Yoshiaki Inoue, Yu Watanabe, and Takaki Kanbara, Org. Lett., 12, 5242-5245 (2010).
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Aerobic oxidative dehydrogenation of benzylamines catalyzed by a cyclometalated ruthenium complex, Ayako Taketoshi, Take-aki Koizumi, and Takaki Kanbara, Tetrahedron Lett., 51, 6457-6459 (2010).

Electrically Conductive Hydrogen-Bond-Based Supramolecular Polymer with Tetrathiafulvalene Moiety: Modulation of Electrical Conductivity and Flexibility of Film by External Stimulus, Seong Jib Choi, Junpei Kuwabara, and Takaki Kanbara, Chem. Asian J., 5, 5154-5157 (2010).

Nickel(II) complexes bearing a pincer ligand containing thioamide units : comparison between SNS and SCS pincer ligands, Take-aki Koizumi, Takuya Teratani, Ken Okamoto, Takakazu Yamamoto, Yukihiro Shimoi, and Takaki Kanbara, Inorg.Chim. Acta, 363, 2474-2480 (2010).

Palladium(II) and platinum(II) complexes bearing κ³SCS pincer ligand with azulene unit, Junpei Kuwabara, Goro Munezawa, Ken Okamoto, and Takaki Kanbara,Dalton Trans.39, 6255-6261 (2010).

Solid-state Structure and Optical Properties of Highly Fluorescent Diketopyrrolopyrrole Derivatives Synthesized by Cross-coupling Reaction, Junpei Kuwabara, Takuya Yamagata, Takaki Kanbara, Tetrahedron, 66, 3736-3741 (2010).

Luminescence Study of Thioamide-based Pincer Palladium Complexes in Poly(vinylpyrrolidone) Matrix, Yasuyuki Ogawa, Ayako Taketoshi, Junpei Kuwabara, Ken Okamoto, Takashi Fukuda, and Takaki Kanbara, Chem. Lett., 39, 385-387 (2010)

Synthesis of Highly Fluorescent Diketopyrrolopyrrole Derivativeand Two-step Response of Fluorescence to Acid, Takuya Yamagata, Junpei Kuwabara, and Takaki Kanbara, Tetrahedron Lett., 51, 1596-1599 (2010).

Aerobic Oxidative Dehydrogenation of 2-Substituted Imidazolines Promoted by Cyclometalated Ruthenium Catalyst, Ayako Taketoshi, Akitsu Tsujimoto, Shusaku Maeda, Take-aki Koizumi, and Takaki Kanbara, ChemCatChem, 2, 58-60 (2010).

Selective Removal of Mercury(II) from Wastewater Using Polythioamides, Shigehiro Kagaya, Hiroyuki Miyazaki, Masahiro Ito, Koji Tohda, and Takaki Kanbara, J. Hazard. Mater., 175, 1113-1115 (2010).

A Sensitive and Selective Method for Determination of Gold(III) Based on Electrothermal Atomic Absorption Spectrometry in Combination with Dispersive Liquid-liquid Microextration Using Dicyclohexylamine, Shigehiro Kagaya, Daisuke Takata, Torajiro Yoshimori, Takaki Kanbara, and Koji Tohda, Talanta, 80, 1364-1370 (2010).

Effects of I and F Codoped TiO2 on the Photocatalytic Degradation of Methylene Blue, Chen Wen, Yu-Jie Zhu, Takaki Kanbara, Hua-Zhang Zhu, Chang-Fa Xiao, Desalination, 249, 621-625 (2009).

Crystal Structure and Intramolecular Hydrogen Bonding of a Substituted Diaminoquinoxaline, Junpei Kuwabara, Hironori Mori, and Takaki Kanbara, Heterocycles, 78, 2601-2607 (2009).

Regioregulated Syntheses of Poly(aminopyridine)s by Pd-catalyzed Amination Reaction, Junpei Kuwabara, Hironori Mori, Takuya Teratani, Munetaka Akita, and Takaki Kanbara, Macromol. Rapid Comun. 30, 997-1001 (2009).

Chemical Stimuli Induced Phosphorescence Modulation of Secondary Thioamide-Based Pincer Platinum Complexes, Ken Okamoto, Takakazu Yamamoto, Munetaka Akita, Akihide Wada, and Takaki Kanbara, Organometallics, 28, 3307-3310 (2009).

Selective Separation of Palladium from Organic Solutions Containing Nickel or Platinum Using Polythioamide as a Sorbent,Shigehiro Kagayam, Erika Tanaka, Nobuhiro Kawai, Ikumi Masore, Emi Sato, Kiyoshi Hasegawa, Masato Kishi, and Takaki Kanbara,J. Inorg. Organomet. Polym. Mater., 19, 67-73 (2009).

N-H・・・Cl Hydrogen Bonded Networks Constructed of a Secondary Thioamide-based SCS Pincer Palladium Complex, Ken Okamoto, Takakazu Yamamoto, and Takaki Kanbara, J. Nanosci. Nanotechnol.,9, 646-649 (2009).

Synthesis and Optical Properties of Pincer Palladium and Platinum Complexes having Thioamide Units, Junpei Kuwabara and Takaki Kanbara, J. Photopolym. Sci. Technol., 21, 349-353 (2008).

Synthesis, Structure, and Quaternization and Complexation Reactions ofk³SCS Pincer Palladium Complexes Having 3,5-Pyridinediyl Unit, Hikaru Meguro, Take-aki Koizumi, Takakazu Yamamoto, and Takaki Kanbara, J. Organomet. Chem., 693,1109-1116(2008).

S-Methylation of Polythiolactam: Chemical Transformation of Macrocyclic Anion Receptor into New Macrocyclic Ligand for Metal Ions, Junichi Sawada, Ken Okamoto, Takakazu Yamamoto, and Takaki Kanbara, Tetrahedron Lett., 48, 8603-8606 (2007).

Aerobic Oxidative Dehydrogenation of Coordinated Imidazoline Units of Pincer Ruthenium Complex, Shusaku Maeda, Take-aki Koizumi, Takakazu Yamamoto, Koji Tanaka, and Takaki Kanbara, J. Organomet. Chem., 692, 5495-5500 (2007).

Efficient Synthesis of Thiobenzanilides by Willgerodt-Kindler Reaction with Base Catalysts, Ken Okamoto, Takakazu Yamamoto, and Takaki Kanbara, Synlett, 2007, 2687-2690.
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Synthesis of random copolymer of pyrrole and aniline by chemical oxidative polymerization,D.-K. Moon, J.-Y. Yun, K. Osakada, T. Kanbara, and T. Yamamoto, Mol. Cryst. Liq. Cryst., 464, 759-767 (2007).

Preparation and Characterization of Luminescent SCS and NCN Pincer Platinum Complexes Derived from 3,5-Bis(anilinothiocarbonyl)toluene,Ken Okamoto, Takaki Kanbara, Takakazu Yamamoto, and Akihide Wada, Organometallics, 25, 4026-4029 (2006).

New Proton Sponge-like Macrocyclic Compound: Synergistic Hydrogen Bonds of Aminopyridine,Takaki Kanbara, Yutaka Suzuki, and Takakazu Yamamoto, Eur. J. Org. Chem., 2006, 3314-3316.

Synthesis and Structural Features of a Series of k³SNS Pincer Complexes of Group 10 Metalss-Bonded to Centered Pyrrolate Unit,Ken Okamoto, Takaki Kanbara, and Takakazu Yamamoto, Chem. Lett.,35, 558-559 (2006).

Preparation of Platinum and Palladium Complexes Containing Phosphine Sulfide and Thioamide-Based SCS Pincer Ligands: Molecular Structures and Photoluminescent Properties of the Pincer Complexes, Takaki Kanbara and Takakazu Yamamoto, “Focus on Organometallic Chemistry Research”, P. 111-132, Cato, M.A. Ed., Nova Science Publishers Inc., Hauppauge, New York (2005).

Azacalix[n]arenes with─NH─ Amino Group: NH・・・OCH₃ Interaction-AssistedSynthesis, Structure, and Reactivity,Wataru Fukushima, Takaki Kanbara, and Takakazu Yamamoto, Synlett, 2005 2931-2934.

Luminescent Palladium Complexes Containing Thioamide-Based SCS Pincer Ligands,Michinori Akaiwa, Takaki Kanbara, Hiroki Fukumoto, and Takakazu Yamamoto, J. Organomet. Chem., 690, 4192-4196 (2005).

Preparation of N-(p-Tolyl)azacalix[n](2,6)pyridines Constructed of Various Numbers of the Recurring Unit, Yutaka Suzuki, Takanori Yanagi, Takaki Kanbara, and Takakazu Yamamoto, Synlett, 2005, 263-266.

Ru(II) Complexes with New Redox-Active 1,10-Phenanthroline Derivatives: Structural, Spectral, and Electrochemical Investigations, Hiroshi Suzuki, Takaki Kanbara, and Takakazu Yamamoto, Inorg. Chim. Acta, 357, 4335-4340 (2004).

Construction of New [2]Pseudorotaxanes by Hydrogen Bonding Assembly of Macrocyclic Tetrathiolactam with Amides and an Ester, Yoshihiko Inoue, Takaki Kanbara, and Takakazu Yamamoto, Tetrahedron Lett., 45, 4603-4606 (2004).

Preparation of Platinum Complexes Containing a Thioamide-Based SCS Pincer Ligand and Their Light Emitting Properties,Takaki Kanbara, Keisuke Okada, Takakazu Yamamoto, Hiromitsu Ogawa, and Tetsuji Inoue,J. Organomet. Chem., 689, 1860-1864 (2004).  

Synthesis, Molecular Structure, and Photoluminescence Properties of Palladium and Platinum Complexes Containing Phosphine Sulfide-Based SCS Pincer Ligand, Takaki Kanbara and Takakazu Yamamoto, J. Organomet. Chem., 688, 15-19 (2003).

Polythioamide as a Collector for Valuable Metals from Aqueous and Organic Solutions, Shigehiro Kagaya, Emi Sato, Ikumi Masore, Kiyoshi Hasegawa, and Takaki Kanbara, Chem. Lett., 32, 622-623 (2003).

Preparation of a New Receptor for Anions, Macrocyclic Polythiolactam - Structure and High Anion Binding Ability, Yoshihiko Inoue, Takaki Kanbara, and Takakazu Yamamoto, Tetrahedron Lett., 44, 5167-5169 (2003).

Preparation of New Type of Azacalixarene, Azacalix[n](2,6)pyridine; Yuko Miyazaki, Takaki Kanbara, and Takakazu Yamamoto, Tetrahedron Lett., 43, 7945-7948 (2002).

Preparation of Poly(arylenediphosphine)s by Palladium-Catalyzed Polycondensation. Formation of Polymer Transition Metal Complexes and Catalytic Reactions; Takaki Kanbara, Syuichi Takase, Rika Hayashi, Shigehiro Kagaya, Kiyoshi Hasegawa, and Takakazu Yamamoto, J. Polym. Sci.: Part A: Polym. Chem.,40, 2637-2647 (2002).

Preparation of a Soluble and Neutral Alkyl Derivative of Poly(3,4-ethylenedioxythiophene) and Its Optical Properties; Kouichi Shiraishi, Takaki Kanbara, Takakazu Yamamoto, and L. Bert. Groenendaal, Polymer, 42, 7229-7332 (2001).

Preparation of Polythioamides from Dialdehydes and Diamines with Sulfur by the Willgerodt-Kindler Type Reaction; Takaki Kanbara, Yoritatsu Kawai, Kiyoshi Hasegawa, Hiroyuki Morita, and Takakazu Yamamoto, J. Polym. Sci.: Part A: Polym. Chem., 39, 3739-3750 (2001).

Palladium-Catalyzed Modification of Poly(p-bromostyrene) with Carbazole and Related Heteroarenes Containing N-H Bond and Their Properties; Takaki Kanbara, Yoko Yokokawa, and Kiyoshi Hasegawa, J. Polym. Sci.: Part A: Polym. Chem., 38, 28-34 (2000). 

Complexation of Porphyrin with a Pyridine Moiety in Self-Assembled Monolayers on Metal Surfaces; Naoki Kanayama, Takaki Kanbara, and Hiromi Kitano, J. Phys. Chem. B, 104, 271-278 (2000). 

Palladium-Catalyzed Polycondensation of Diiodobenzenes with 1,3-Bis(phenylphosphino)propane and Preparation of Polymer Transition Metal Complexes; Takaki Kanbara, Syuichi Takase, Kiyoaki Izumi, Shigehiro Kagaya, and Kiyoshi Hasegawa, Macromolecules, 33, 657-659 (2000). 

Visible Light-Induced Catalytic Degradation of Iprobenfos Fungicide by Poly(3-octylthiophene-2,5-diyl) Film; Chen Wen, Kiyoshi Hasegawa, Takaki Kanbara, Shigehiro Kagaya, and Takakazu Yamamoto, J. Photochem. Photobiol.; A: Chemistry, 133, 59-66 (2000). 

Synthesis of Poly(3-nitropyridine-2,5-diyl) and Poly(3,3’-dinitro-2,2’-bipyridine-5,5’-diyl) and Electrochemical Response; Byoung-Ki Choi, Hiroshi Takahashi, Takaki Kanbara, and Takakazu Yamamoto, Polym. J., 32, 991-994 (2000). 

Synthesis of Amorphous Molecular Materials with Multiple Azobenzene Units by Palladium-Catalyzed Amination and Their Photochromism; Akira Honma, Takaki Kanbara, and Kiyoshi Hasegawa, Mol. Cryst. Liq. Cryst., 345, 125-130 (2000). 

Selective Sorption of Gold(III) by Polystyrene-Supported alpha-Pyridylamino Oligomer; Shigehiro Kagaya, Daigo Kodajima, Yae Takahashi, Takaki Kanbara, and Kiyoshi Hasegawa, J. Mater. Chem., 10, 2442-2444 (2000).

Photocatalytic Properties of Poly(3-octylthiophene-2,5-diyl) Film Blended with Sensitizer for the Degradation of Iprobenfos Fungicide; Chen Wen, Kiyoshi Hasegawa, Takaki Kanbara, Shigehiro Kagaya, and Takakazu Yamamoto, J. Photochem. Photobiol.; A: Chemistry, 137, 45-51 (2000). 

Preparation of meta-Polyaniline and Its Related Poly(iminoarylene)s by Nickel-Catalyzed Polycondensation of Aryl Dichlorides with Aryl Primary Diamines;Takaki Kanbara, Yuko Miyazaki, Kiyoshi Hasegawa, and Takakazu Yamamoto, J. Polym. Sci.: Part A: Polym. Chem., 38, 4194-4199 (2000). 

Preparation of Soluble Poly(iminoarylene)s by Palladium-Catalyzed Polycondensation of Aryl Dibromides with Aryl Primary Diamines; Takaki Kanbara, Yoshiko Nakadani, and Kiyoshi Hasegawa, Polym. J., 31, 206-209 (1999). 

Preparation of Polythioamides from Dialdehydes and 4,4'-Trimethylenedipiperidine with Sulfur by the Willgerodt-Kindler Reaction; Yoritatsu Kawai, Takaki Kanbara, and Kiyoshi Hasegawa, J. Polym. Sci.: Part A: Polym. Chem., 37, 1737-1740 (1999). 

Photocatalyzed Degradation of Agrochemicals Using Poly(2,5-dihexoxy-p-phenylene) and Poly(3-octylthiophene-2,5-diyl) Films; Kiyoshi Hasegawa, Chen Wen, Tomoki Kotani, Takaki Kanbara, Shigehiro Kagaya, and Takakazu Yamamoto, J. Mater. Sci. Lett., 18, 1091-1093 (1999). 

Preparation and Immobilization of 6-Amino-2,3-di(2-pyridyl)quinoxaline. New Fluorescent Chemosensor for Heavy Metal Ions; Takaki Kanbara, Hitoshi Takakusagi, Shigehiro Kagaya, and Kiyoshi Hasegawa, Chem. Lett., 1999, 969-970. 

Preparation of New Polymers Containing an Azobenzene Group in the Side Chain by Palladium-Catalyzed Polymer Reaction and Polycondensationand Characterization of the Polymers; Takaki Kanbara, Mieko Oshima, Toshitaka Imayasu, and Kiyoshi Hasegawa, Macromolecules, 31, 8725-8730(1998).

Preparation and Properties of pi-Conjugated Poly(benzimidazole-4,7-diyl)s; Takakazu Yamamoto, Kiyoshi Sugiyama, Takaki Kanbara, Hideki Hayashi, and Hideki Etori, Macromol. Chem. Phys., 199, 1807-1813 (1998).

Preparation of Poly(arylenediamine)s by Palladium-catalyzed Polycondensation of Aryl Dibromides with Secondary Diamines; Takaki Kanbara, Kiyoaki Izumi, Tomoko Narise, and Kiyoshi Hasegawa, Polym. J., 30,66-68 (1998).

Photocatalyzed Degradation of Agrochemicals in TiO2 Aqueous Suspensions; Kiyoshi Hasegawa, Takaki Kanbara, and Shigehiro Kagaya, Denki Kagaku, 66, 625-634 (1998).

Palladium-Catalyzed Modification of Poly(p-bromostyrene) with 4-(Phenylamino)azobenzene. Optical Properties of New Azobenzene-Group Containing Polystyrene; Takaki Kanbara, Mieko Oshima, and Kiyoshi Hasegawa, J. Polym. Sci., A, Polym. Chem., 36, 2155-2160 (1998).

Preparation of Photocatalytically Active Polyamine and Polyamide Containing Acridine Group in the Main Chain by Palladium-catalyzed Polycondensation; Takaki Kanbara, Toshitaka Imayasu, and Kiyoshi Hasegawa, Chem. Lett., 1998, 709-710.

Reductive Polycondensation of Dialdehydes with Diamines Using Sodium Triacetoxyborohydride; Tasuaki Sakano, Yoritatsu Kawai, Takaki Kanbara, and Kiyoshi Hasegawa, Polym. J., 30, 857-859 (1998).

Polyquinoxaline as an Electron Injecting Material for Electroluminescent Device; Takashi Fukuda, Takaki Kanbara, Takakazu Yamamoto, Ken Ishikawa, Hideo Takezoe, and Atsuo Fukuda, Synth. Met., 85,1195-1196 (1997).

Preparation of New Redox-Active Polyionenes with Porphyrin Units in the Main Chain; Takaki Kanbara, Ryuichi Kanayama, and Kiyoshi Hasegawa, Polym. Bull., 38, 523-530 (1997).

Effect of Zinc Salts on the Spontaneous Copolymerization of 4-Vinylpyridine with Various Electron-rich Vinyl Monomers; Takaki Kanbara, Michael G. Mikhael, Anne Buyle Padias, and H. K. Hall, Jr., J. Polym.Sci., Polym. Chem., 35, 2787-2792 (1997).

Preparation and Characterization of Poly(9-hexylcarbazole-3,6-diylbutadiynylene);Takaki Kanbara, Satoru Ohshima, Kiyoshi Hasegawa, and Shigeya Takeuchi, Polym.Bull., 39, 453-458 (1997).

Preparation of Poly(imino-1,3-phenylene) and Its Related Polymer by Palladium-catalyzed Polycondensation; Takaki Kanbara, Kiyoaki Izumi, Yoshiko Nakadani, Tomoko Narise, and Kiyoshi Hasegawa, Chem. Lett., 1997, 1185-1186.

Poly(thiophene-2,5-diyl) with a Crown Ethereal Subunit. Preparation, Optical Properties, and n-Doping State Stabilized against Air; Takakazu Yamamoto, Masakatsu Omote, Yuichi Miyazaki, Akio Kashiwazaki, Bang-Lin Lee, Takaki Kanbara, Kohtaro Osakada, Tetsushi Inoue, and Kenji Kubota, Macromolecules, 30, 7158-7165 (1997).

Determination of Optical Constants of Polyquinoxaline as Electroluminescent Materials; Takashi Fukuda, Takaki Kanbara, Takakazu Yamamoto, Satoru Nakao, Ken Ishikawa, Hideo Takezoe, and Atsuo Fukuda, Jpn. J. Appl. Phys.,35,761-764 (1996).

Preparation of New Electron-Accepting pai-Conjugated Polyquinoxalines. Chemical and Electrochemical Reduction, Electrically Conducting Properties, and Use in Light-Emitting Diodes; Takakazu Yamamoto, Kiyoshi Sugiyama, Takashi Kushida, Tetsuji Inoue, and Takaki Kanbara, J. Am. Chem. Soc.,118,3930-3937 (1996).

Preparation of Soluble and Fluorescent Poly(arylene)s by 1,3-DipolarPolycycloaddition and Properties of the Polymers; Takaki Kanbara, Takumi Ishii, Kiyoshi Hasegawa, and Takakazu Yamamoto, Polym. Bull., 36,673-679 (1996).

Polyquinoxaline as an Excellent Electron Injecting Material for Electroluminescent Device; Takashi Fukuda, Takaki Kanbara, Takakazu Yamamoto, Ken Ishikawa, Hideo Takezoe, and Atsuo Fukuda, Appl. Phys. Lett., 68, 2346-2348(1996).

Vacuum-Deposited Thin Film of Linear pai-Conjugated Poly(arylene)s. Optical, Electrochemical, and Electrical Properties and Molecular Alignment; Takakazu Yamamoto, Takaki Kanbara, Chiaki Mori, Hiroshi Wakayama, Takashi Fukuda, Tetsushi Inoue, and Shintaro Sasaki, J. Phys. Chem., 100,12631-12637 (1996).

Photocarrier-Transporting Kinetics in Poly(2,3-di(p-tolyl)quinoxaline-5,8-diyl);Kazuyuki Suruga, Takashi Fukuda, Ken Ishikawa, Hideo Takezoe, Atsuo Fukuda, Takaki Kanbara, and Takakazu Yamamoto, Synth. Met., 79, 149-153(1996).

Preparation of Novel Poly(aryleneamine)s by Palladium Complex Catalyzed Polycondensation of Dibromobenzenes with Diamines; Takaki Kanbara, Akira Honma, and Kiyoshi Hasegawa, Chem. Lett., 1996, 1135-1136.

Pi-Conjugated Donor-Acceptor Copolymers Constituted of pi-Excessive and pi-Deficient Arylene Units. Optical and Electrochemical Properties in Relationto CT Structure of the Polymer; Takakazu Yamamoto, Zhen-hua Zhou, Takaki Kanbara, Masaki Shimura, Kenichi Kizu, Tsukasa Maruyama, Yoshiyuki Nakamura, Takashi Fukuda, Bang-Lin Lee, Naoki Ooba, Satoru Tomaru, Takashi Kurihara, Toshikuni Kaino, Kenji Kubota, and Shintaro Sasaki, J. Am. Chem. Soc.,118,10389-10399 (1996).

Pi-Conjugated Poly(quinone)s. Preparation by Using Ni(0) Complex and Properties of the New Type pi-Conjugated Polymers; Takakazu Yamamoto, Hideki Etori, and Takaki Kanbara, Synth. Met., 69, 529-531 (1995).

New pi-Conjugated Heteroaromatic Alternative Copolymers with Electron-donating Thiophene or Furan Units and Electron-withdrawing Quinoxaline Units. Preparation by Palladium-Catalyzed Polycondensation and Characterization of the Copolymers; Takaki Kanbara, Yuichi Miyazaki, and Takakazu Yamamoto, J. Polym. Sci.,Polym. Chem., 33, 999-1003 (1995).

Preparation of Poly(quinoxaline-5,8-diyl) Derivatives by Using Zero-valent Nickel Complexes. Electrical and Optical Properties and Light-Emitting Diodes; Takaki Kanbara, Tesuji Inoue, Kiyoshi Sugiyama, and Takakazu Yamamoto, Synth.Met., 71, 2207-2208 (1995).

Photoconductive Properties of Poly(2,3-di(p-tolyl)quinoxaline-5,8-diyl);Takashi Fukuda, Kazuyuki Suruga, Ken Ishikawa, Hideo Takezoe, Atsuo Fukuda, Takaki Kanbara, and Takakazu Yamamoto, Synth. Met., 74, 43-48(1995).

Field Effect Transistor Using Vacuum Deposited Thin Layer Film of Poly(thiophene-2,5-diyl) Prepared by Organometallic Method; Takakazu Yamamoto, Hiroshi Wakayama, Takaki Kanbara, Kimihiro Sasaki, Kazuo Tsutsui, and Seijiro Furukawa, Denki Kagaku, 62, 84 (1994).

Preparation and Properties of Polymer Solid Electrolytes Using Poly(vinylalcohol) and Thermally Resistive Poly[arylene(1,3-imidazolidine-2,4,5-trione-1,3-diyl)]as Matrix Polymers; Takakazu Yamamoto, Minoru Inami, and Takaki Kanbara, Chem.Mater., 6, 44-50 (1994).

Polymer Light-Emitting Diodes with Single- and Double-Layer Structures Using Poly(2,3-diphenylquinoxaline-5,8-diyl); Takakazu Yamamoto, Tetsuji Inoue, and Takaki Kanbara, Jpn. J. Appl. Phys., 33, L250-253(1994).

Electrochemical and Chemical Preparation of Linear pai-Conjugated Poly(quinoline-2,6-diyl)Using Nickel Complexes and Electrochemical Properties of the Polymer; Nobuo Saito, Takaki Kanbara, Yoshiyuki Nakamura, Takakazu Yamamoto, and Kenji Kubota, Macromolecules, 27, 756-761 (1994).

New Type Polymers Constituted of Quinone Units in the Main Chain; Hideki Etori, Takaki Kanbara, and Takakazu Yamamoto, Chem. Lett., 1994,461-464.

A New Type of Poly(thiophene-2,5-diyl) Having a Crown Ethereal Subunit. Strong Interaction of the Subunit with Cationic Dopants to Exhibit Unique Doping-Undoping Behavior; Yuichi Miyazaki, Takaki Kanbara, Kohtaro Osakada,Takakazu Yamamoto, and Kenji Kubota, Polym. J., 26, 509-512(1994).

Pi-Conjugated Charge Transfer Polymer Constituted of Electron-donating Thiophene and Electron-withdrawing Quinoxaline; Takakazu Yamamoto, Takaki Kanbara, Naoki Ooba, and Satoru Tomaru, Chem. Lett., 1994,1709-1712.

Oxidation Polymerization of Pyrrole on Microphase-saparated Block Copolymer Films as Template; Koji Ishizu, Kazuhisa Honda, Takaki Kanbara, and Takakazu Yamamoto, Polymer, 35, 4901-4906 (1994).

Molecular Orientation of Poly(2,2'-bipyridine-5,5'-diyl) Film Prepared by Vacuum Deposition on the Glass Substrate as Determined with SHG Technique; Takashi Fukuda, Takaki Kanbara, Takakazu Yamamoto, Takayuki Fujioka, Kotaro Kajiyama, Hideo Takezoe, and Atuo Fukuda, Mol. Cryst. Liq. Cryst.,226,207-212 (1993).

Preparation of Poly(3-alkoxythiophene-2,5-diyl) by Organometallic Processand Doping-Undoping Behaviors of the Polymers; Yuichi Miyazaki, Takaki Kanbara, Kohtaro Osakada, and Takakazu Yamamoto, Chem. Lett., 1993,415-418.

Preparation and Properties of New pi-Conjugated Poly(benzimidazole-4,7-diyl)and Poly(2,1,3-benzothiadiazole-4,7-diyl); Takaki Kanbara and Takakazu Yamamoto, Chem. Lett., 1993, 419-422.

Chemical and Electrochemical Preparation of Poly(9,10-dihydrophenanthrene-2,7-diyl)Using Nickel Complexes and Electrochemical Properties of the Polymer; Nobuo Saito, Takaki Kanbara, Toshihiko Sato, and Takakazu Yamamoto, Polym. Bull., 30, 285-290 (1993).

Preparation of New Type Redox Active Quaternized Poly(quinolinium) and Poly(isoquinolinium) Salts Showing Viologen-like Redox Behavior; Takaki Kanbara and Takakazu Yamamoto, Macromolecules, 26, 1975-1979(1993).

Preparation and Electrochromism of Poly(vinyl alcohol)-based Copolymer Having Oligothiophene Pendant; Masaki Wakabayashi, Yuichi Miyazaki, Takaki Kanbara, Kohtaro Osakada, and Takakazu Yamamoto, Synth. Met., 55-57,3632-3636 (1993).

Unique Optical and Doping Behavior of pi-Conjugated Polymers Constitutedof Electron-accepting Pyridine and Electron-donating Thiophene Units; Takakazu Yamamoto, Zhen-Hua Zhou, Tsukasa Maruyama, and Takaki Kanbara, Synth. Met., 55-57, 1209-1213 (1993).

Properties and Structure of Substituted Poly(thiophene-2,5-diyl), Poly(pyridine-2,5-diyl),and Their Analogues Prepared by Organometallic Processes; Takakazu Yamamoto, Yuichi Miyazaki, Takashi Fukuda, Zhen-Hua Zhou, Tsukasa Maruyama, Takaki Kanbara, and Kohtaro Osakada, Synth. Met., 55-57, 1214-1220(1993)

Preparation and Properties of New pi-Conjugated Poly(quinoxaline-5,8-diyl)and Poly(2,3-diethylquinoxaline-5,8-diyl). Enhancement of Electron-accepting Properties of Poly(arylene)s by Introduction of Imine Nitrogen.; Takaki Kanbara and Takakazu Yamamoto, Macromolecules, 26, 3464-3466(1993).

Preparation of New pi-Conjugated Poly(2,3-diphenylquinoxaline-5,8-diyl)and Poly(2,3-di(p-tolyl)-quinoxaline-5,8-diyl). Electrochemical Activity and Light-emitting Diode; Takaki Kanbara and Takakazu Yamamoto, Chem. Lett., 1993, 1459-1462.

Anisotropic Conductivity on Diblock Copolymers with Lamellar Microdomains; Koji Ishizu, Yoshikuni Yamada, Reiko Saito, Takaki Kanbara, and Takakazu Yamamoto, Polymer, 34, 2256-2262 (1993).

Chemical and Electrochemical Preparation of Poly(quinoline-2,6-diyl),Poly(quinoxaline-2,6-diyl), and Poly(1,5-naphthyridine-2,6-diyl) by Using Nickel Complexes. Importance of the 2,6-Bonding for Linear Structure, Highly Extended pai-Conjugation, and Strong Electron-accepting Properties.; Nobuo Saito, Takaki Kanbara, Takashi Kushida, Kenji Kubota, and Takakazu Yamamoto, Chem. Lett., 1993, 1775-1778.

Raman Studies of Intact and Sodium Doped 13C-Substitutes Poly-p-phenylene; Yukio Furukawa, Hirofumi Ohtsuka, Mitsuo Tasumi, Isao Wataru, Takaki Kanbara, and Takakazu Yamamoto, J. Raman Spectroscopy, 24, 551-554(1993).

 

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