TAKAGI Koji

J-GLOBAL         Last updated: Oct 9, 2019 at 02:42
 
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Name
TAKAGI Koji
E-mail
takagi.kojinitech.ac.jp
Affiliation
Nagoya Institute of Technology
Job title
Associate Professor
Degree
Doctor (Engineering)(Tokyo Institute of Technology), Master (Engineering)(Tokyo Institute of Technology)
Research funding number
60303690
ORCID ID
orcid.org/0000-0002-6107-0761

Research Interests

 
 

Research Areas

 
 

Academic & Professional Experience

 
Apr 2007
 - 
Today
Associate Professor, Nagoya Institute of Technology
 
Apr 2005
 - 
Mar 2007
Associate Professor (as old post name), Nagoya Institute of Technology
 
Apr 1998
 - 
Mar 2005
Research Assistant, Nagoya Institute of Technology
 

Education

 
 
 - 
Mar 1993
Faculty of Engineering, Nagoya Institute of Technology
 
 
 - 
Mar 1998
Graduate School, Division of Integrated Science and Engineering, Tokyo Institute of Technology
 

Published Papers

 
A Novel Living Coordination Polymerization of Methoxyallene by pi-Allylnickel Catalyst
Ikuyoshi Tomita, Yukiko Kondo, Koji Takagi, and Takeshi Endo*
Macromolecules ACS   27(15) 4413-4414   Jul 1994   [Refereed]
Block Copolymerization of Alkoxyallenes by the Living Coordination System with a pi-Allylnickel Catalyst
Ikuyoshi Tomita, Toru Abe, Koji Takagi, and Takeshi Endo*
J. Polym. Sci., Part A: Polym. Chem. Wiley   33(14) 2487-2492   Jun 1995   [Refereed]
A Novel Living Coordination Polymerization of Alkoxyallenes by a pi-Allylnickel Catalyst I
Ikuyoshi Tomita, Yukiko Kondo, Koji Takagi, and Takeshi Endo*
Acta Polym.   46 432-436   Jul 1995   [Refereed]
A Novel Living Coordination Polymerization of Phenylallene Derivatives by pi-Allylnickel Catalyst
Koji Takagi, Ikuyoshi Tomita, and Takeshi Endo*
Macromolecules ACS   30(24) 7386-7390   Feb 1997   [Refereed]
Living Coordination Polymerization of Alkylallenes by pi-Allylnickel Catalyst: Observation of an Extremely High Polymerizability of 1,2-Cyclononadiene
Koji Takagi, Ikuyoshi Tomita, and Takeshi Endo*
Chem. Lett. BCSJ   1997(11) 1187-1188   Oct 1997   [Refereed]
Design and Synthesis of Polymerizable Cumulated Double Bond System. -Living Coordination Polymerization of Alkylallenes by pi-Allylnickel Catalyst-
Takeshi Endo,* Koji Takagi, and Ikuyoshi Tomita
Tetrahedron Wiley   53(45) 15187-15196   Nov 1997   [Refereed]
Block Copolymerization of Allene Derivatives with Isocyanides by the Coordination Polymerization with pi-Allylnickel Catalyst
Ikuyoshi Tomita, Masanori Taguchi, Koji Takagi, and Takeshi Endo*
J. Polym. Sci., Part A: Polym. Chem. Wiley   35(3) 431-437   Nov 1997   [Refereed]
Block Copolymerization of Alkoxyallenes with Phenylallene by the Living Coordination System with pi-Allylnickel Catalyst
Koji Takagi, Ikuyoshi Tomita, and Takeshi Endo*
Polym. Bull. Springer   39(6) 685-692   Dec 1997   [Refereed]
Single-feed One-step Block Copolymerization of n-Octyloxyallene with Phenylallene using pi-Allylnickel as Initiator
Koji Takagi, Ikuyoshi Tomita, and Takeshi Endo*
Chem. Commun. RSC   1998(6) 681-682   Mar 1998   [Refereed]
Living Coordination Polymerization of Alkoxyallenes by pi-Allylnickel Catalyst II -Effect of Anionic Ligands on Polymerization Behavior and Polymer Structure-
Koji Takagi, Ikuyoshi Tomita, Yoshiyuki Nakamura, and Takeshi Endo*
Macromolecules ACS   31(9) 2779-2783   Apr 1998   [Refereed]
Living Coordination Polymerization of N-Allenylamides by pi-Allylnickel Catalysts
Koji Takagi, Ikuyoshi Tomita, and Takeshi Endo*
Macromolecules ACS   31(20) 6741-6747   Sep 1998   [Refereed]
Synthesis of Telechelic Polystyrene by Radical Polymerization using 1,4-Bis(p-tert-butylphenylselenomethyl)benzene as a Photoiniferter
Tae Seok Kwon, Sadanori Kumazawa, Shuji Kondo, Koji Takagi, Hideo Kunisada, Yasuo Yuki*
J. Macromol. Sci., Pure and Appl. Chem.   A35(12) 1895-1913   Dec 1998   [Refereed]
Radical Polymerization of p-Substituted Styrene with Benzyl Phenyl Selenide as Photoiniferter
Tae Seok Kwon, Hiromitsu Ochiai, Shuji Kondo, Koji Takagi, Hideo Kunisada, and Yasuo Yuki*
Polym. J. SPSJ   31(5) 411-417   May 1999   [Refereed]
Synthesis and Radical Polymerization of p-Phenylselenomethylstyrene and Application to Graft Copolymers
Tae Seok Kwon, Shuji Kondo, Koji Takagi, Hideo Kunisada, and Yasuo Yuki*
Polym. J. SPSJ   31(6) 483-487   Jun 1999   [Refereed]
Controlled Radical Polymerization of Styrene Utilizing Excellent Radical Capturing Ability of Diphenyl Ditelluride
Koji Takagi,* Akimasa Soyano, Tae Seok Kwon, Hideo Kunisada, and Yasuo Yuki
Polym. Bull. Springer   43(2-3) 143-150   Dec 1999   [Refereed]
Synthesis and Polymerization of Isopropenyl-1,3,5-triazines Carrying a Long Alkyl Chain with Oxyethylene Spacer and the Side Chains Crystallization of Obtained Comb-like Polymers
Koji Takagi et al
J. Macromol. Sci., Pure and Appl. Chem.   A38(5-6) 417-427   Apr 2000   [Refereed]
Synthesis of Triazine Dendrimers
Koji Takagi,* Kazuhito Uchikura, Tatsuya Hattori, Hideo Kunisada, and Yasuo Yuki
Kobunshi Ronbunshu   57(10) 646-651   Oct 2000   [Refereed]
Synthesis of Macromonomer Using End Functional Polystyrene Prepared from p-Methoxybenzyl p-Trimethylsilylphenyl Selenide as Photoiniferter
Tae Seok Kwon, Koji Takagi, Hideo Kunisada, and Yasuo Yuki*
J. Macromol. Sci., Pure and Appl. Chem.   A37(11) 1461-1473   Nov 2000   [Refereed]
Synthesis of Branched Polystyrene by Photopolymerization of Selenium-Containing Styrene Monomer
Koji Takagi,* Yukimi Nishikawa, Tae Seok Kwon, Hideo Kunisada, and Yasuo Yuki
Polym. J. SPSJ   32(11) 970-973   Nov 2000   [Refereed]
Triazine Dendrimers by Divergent and Convergent Methods
Koji Takagi,* Tatsuya Hattori, Hideo Kunisada, and Yasuo Yuki
J. Polym. Sci. Part A: Polym. Chem. Wiley   38(24) 4385-4395   Dec 2000   [Refereed]
Radical Polymerization of Methyl Methacrylate with Diphenyl Diselenide under Thermal or Photoirradiational Conditions
Tae Seok Kwon, Kirito Suzuki, Koji Takagi, Hideo Kunisada, and Yasuo Yuki*
J. Macromol. Sci., Pure and Appl. Chem.   A38(5-6) 591-604   May 2001   [Refereed]
Synthesis of ABA Type Triblock Copolymers by Radical Polymerization with 1,4-Bis(p-tert-butylphenylselenomethyl)benzene as a Photoiniferter
Tae Seok Kwon, Koji Takagi, Hideo Kunisada, and Yasuo Yuki*
J. Macromol. Sci., Pure and Appl. Chem.   A38(5-6) 605-626   May 2001   [Refereed]
Synthesis of PPV-Based Conjugated Oligomer Containing Tropone in Main Chain
Koji Takagi,* Yukimi Nishikawa, Hideo Kunisada, and Yasuo Yuki
Chem. Lett. CSJ   2001(12) 1244-1245   Nov 2001   [Refereed]
pi-Conjugated Oligomers Containing Tropone in the Main Chain: Synthesis, Characterization, and Optical Properties
Koji Takagi,* Yukimi Nishikawa, Naomi Nishioka, Hideo Kunisada, and Yasuo Yuki
J. Polym. Sci. Part A: Polym. Chem. Wiley   40(22) 3927-3937   Mar 2002   [Refereed]
Synthesis of Diblock Copolymers by End Functional Polystyrene Containing Phenylseleno Groups as Polymeric Photoiniferter
Tae Seok Kwon,* Koji Takagi, Hideo Kunisada, and Yasuo Yuki
J. Macromol. Sci., Pure and Appl. Chem.   A39(9) 991-1006   Sep 2002   [Refereed]
The Adsorption of Guest Molecule onto Self-Assembled Monolayer of alpha-Helical Polypeptide
Issei Aoki, Naomi Nishioka, Koji Takagi, Yasuo Yuki, and Takatoshi Kinoshita*
Trans. of Mater. Res. Soc. Jpn.   27(3) 559-562   Dec 2002   [Refereed]
Acid-Doping to Tropone-Containing Conjugated Polymer
Koji Takagi,* Kosuke Mori, Takatoshi Kinoshita, Hideo Kunisada, and Yasuo Yuki
Chem. Lett. CSJ   32(6) 552-553   Jun 2003   [Refereed]
Synthesis of Star Polystyrene by Radical Polymerization with 1,2,4,5-Tetrakis(p-tert-butylphenylselenomethyl)benzene as a Novel Photoiniferter
Tae Seok Kwon,* Koji Takagi, Hideo Kunisada, and Yasuo Yuki
Eur. Polym. J.   39(7) 1437-1441   Jul 2003   [Refereed]
Allylnickel-Catalyzed Living Coordination Polymerization of Allenes with Ester Functionality
Koji Takagi, Ikuyoshi Tomita,* and Takeshi Endo
Polym. Bull. Springer   50(5-6) 335-342   Jul 2003   [Refereed]
Tropone-Containing pi-Conjugated Polymers: Annulation of Tropone onto Benzene Ring in the Conjugated Polymer
Naomi Nishioka, Koji Takagi,* Takatoshi Kinoshita, Hideo Kunisada, and Yasuo Yuki
J. Polym. Sci. Part A: Polym. Chem. Wiley   42(5) 1208-1215   Mar 2004   [Refereed]
Coordination of Transition Metal Dithiolate Complex to 2,2’-Bipyridine-Based pi-Conjugated Polymer
Shin-ichiro Kato, Koji Takagi,* Kirito Suzuki, Takatoshi Kinoshita, and Yasuo Yuki
J. Polym. Sci. Part A: Polym. Chem. Wiley   42(11) 2631-2639   Jun 2004   [Refereed]
Tropone-Containing Conjugated Polymer, Part V Influence of Fused Benzene Ring upon Photophysical Properties
Koji Takagi,* Kosuke Mori, Hideo Kunisada, and Yasuo Yuki
Polym. Bull. Springer   52(2) 125-132   Aug 2004   [Refereed]
Koji Takagi,* Satoshi Kunii, and Yasuo Yuki
J. Polym. Sci. Part A: Polym. Chem. Wiley   43(10) 2119-2127   May 2005   [Refereed]
Koji Takagi,* Satoshi Miwa, and Yasuo Yuki
React. Funct. Polym.   66(12) 1718-1724   Dec 2006   [Refereed]
Koji Takagi,* Kazuhiro Saiki, Kousuke Mori, Yasuo Yuki, Shin-ichi Matsuoka, and Masato Suzuki
Polym. J. SPSJ   39(8) 813-821   Aug 2007   [Refereed]
Koji Takagi,* Hiroki Kakiuchi, Yasuo Yuki, and Masato Suzuki
J. Polym. Sci., Part A: Polym. Chem. Wiley   45(21) 4786-4794   Sep 2007   [Refereed]
Koji Takagi,* Masaki Momiyama, Junya Ohta, Yasuo Yuki, Shin-ichi Matsuoka, and Masato Suzuki
Macromolecules ACS   40(24) 8807-8811   Nov 2007   [Refereed]
Koji Takagi,* Kenta Sugihara, Junya Ohta, Yasuo Yuki, Shin-ichi Matsuoka, and Masato Suzuki
Polym. J. SPSJ   40(7) 614-621   Jul 2008   [Refereed]
Koji Takagi,* Tsuyoshi Nakagawa, and Hidenobu Takao
J. Polym. Sci., Part A: Polym. Chem. Wiley   46(24) 8141-8148   Dec 2008   [Refereed]
Koji Takagi,* Kazuhiro Saiki, Hirokazu Hayashi, Hiroyasu Ohsawa, Shin-ichi Matsuoka, and Masato Suzuki
Bull. Chem. Soc. Jpn. CSJ   82(2) 236-241   Feb 2009   [Refereed]
Koji Takagi,* Shinri Sugimoto, Manabu Mitamura, Shin-ichi Matsuoka, and Masato Suzuki
Synth. Met.   159(3-4) 228-233   Feb 2009   [Refereed]
Koji Takagi,* Chikako Torii, and Yusuke Yamashita
J. Polym. Sci., Part A: Polym. Chem. Wiley   47(12) 3034-3044   Jun 2009   [Refereed]
Koji Takagi,* Kenta Sugihara, and Takato Isomura
J. Polym. Sci., Part A: Polym. Chem. Wiley   47(18) 4822-4829   Sep 2009   [Refereed]
Koji Takagi,* Ai Tahara, and Hiroki Kakiuchi
Polym. J. SPSJ   41(9) 733-738   Sep 2009   [Refereed]
Koji Takagi,* Tsuyoshi Nakagawa, and Hidenobu Takao
J. Polym. Sci., Part A: Polym. Chem. Wiley   48(1) 91-98   Jan 2010   [Refereed]
Poly(ethylene glycol)-Induced Acceleration of Free Radical Polymerization of Methyl Methacrylate: Effects of Highly Viscous Solvent and Kinetic Study
Shin-ichi Matsuoka,* Takashi Kikuno, Koji Takagi, and Masato Suzuki
Polym. J. SPSJ   42(5) 368-374   May 2010   [Refereed]
Synthesis and Characterization of Nitrogen-Linked Carbazole-Containing Fluorescent Polymers
Koji Takagi,* Hidenobu Takao, and Tsuyoshi Nakagawa
J. Polym. Sci., Part A: Polym. Chem. Wiley   48(17) 3729-3735   Aug 2010   [Refereed]
Poly(3-hexylthiophene)-block-poly(3-semifluoroalkylthiophene) for polymer solar cells
Ichiko Yamada, Takeshi Toru, Koji Takagi, Yasuhiko Hayashi,* Tetsuo Soga, and Norio Shibata
Int. J. Mol. Sci.   11(12) 5027-5039   Dec 2010   [Refereed]
Polycondensation of 4-Octylaminobenzoic Acid Esters Having Bithiophene at 3-Position and Optical Properties of Polymer
Katsuya Nobuke, Ryohei Yamakado, and Koji Takagi
Kobunshi Ronbunshu   68(1) 33-38   Jan 2011   [Refereed]
Self-Assembly of Oligothiophene Chromophores by m-Calix[3]amide Scaffold
Koji Takagi et al
J. Org. Chem.   76(8) 2471-2478   Apr 2011   [Refereed]
Syntheses of Aliphatic Polycarbonates from 2’- Deoxyribonucleosides
Masato Suzuki et al
Biomacromolecules   12(5) 1449-1459   May 2011   [Refereed]
Organocatalytic Tail-to-Tail Dimerization of Olefin: Umpolung of Methyl Methacrylate Mediated by N-Heterocyclic Carbene
Shin-ichi Matsuoka et al
Org. Lett.   13(14) 3722-3725   Jun 2011   [Refereed]
Regioselective Grignard Metathesis Reaction of 2,5-Dibromo-3-(6’-hexylpyridine-2’-yl)thiophene and Kumada Coupling Polymerization
Koji Takagi et al
J. Polym. Sci., Part A: Polym. Chem.   49(18) 4013-4020   Sep 2011   [Refereed]
Synthesis and Isomerization of Conjugated Oligomers Containing Azoimidazole Unit
Koji Takagi et al
J. Polym. Sci., Part A: Polym. Chem.   49(23) 4993-5000   Nov 2011   [Refereed]
Organocatalytic head-to-tail dimerization of methacrolein via conjugate addition of methanol: An alcohol activation mechanism proved by electrospray ionization mass spectrometry
Shin-ichi Matsuoka et al
Tetrahedron Lett.   52(50) 6835-6838   Nov 2011   [Refereed]
Preparation of molecular cage by coordination of m-calix[3]amide bearing pyridine with palladium complex
Koji Takagi et al
Chem. Lett.   41(3) 249-251   Mar 2012   [Refereed]
Sequential one-pot and three-component reactions of an N-heterocyclic carbene to form 4-(1,2,4-triazol-5-ylidene)pyrrolidine-2,5-diones: a tandem umpolung/annulation sequence via deoxy-Breslow intermediates
Shin-ichi Matsuoka, Yusuke Tochigi, Koji Takagi, and Masato Suzuki
Tetrahedron   68(47) 9836-9841   Nov 2012   [Refereed]
A screw-shaped alignment of pyrene using m-calix[3]amide
Ryohei Yamakado, Shin-ichi Matsuoka, Masato Suzuki, Koji Takagi, Kosuke Katagiri, and Isao Azumaya
Tetrahedron   69(5) 1516-1520   Jan 2013   [Refereed]
Synthesis of Green and Blue Fluorescent Ladder-Type Conjugated Imidazolium Compounds
Koji Takagi, Yohei Ito, Kazuma Kusafuka, and Masanori Sakaida
Org. Biomol. Chem.   11(14) 2245-2248   Mar 2013   [Refereed]
Synthesis and Optical Properties of Conjugated Polymers Bearing 1,8-Difunctionalized Carbazole Unit
Koji Takagi,* Hidenobu Takao, and Tsuyoshi Nakagawa
Polym. J.   45(4) 396-400   Apr 2013   [Refereed]
Helicity Induction in Three pi-Conjugated Chromophores by Planar Chirality of Calixamide
Ryohei Yamakado, Koichiro Mikami,* Koji Takagi,* Isao Azumaya,* Shinri Sugimoto, Shin-ichi Matsuoka, Masato Suzuki, Kosuke Katagiri, Masanobu Uchiyama, and Atsuya Muranaka
Chem. Eur. J.   19(36) 11853-11857   Aug 2013   [Refereed]
Experimental Mechanistic Studies of the Tail-to-Tail Dimerization of Methyl Methacrylate Catalyzed by N-Heterocyclic Carbene
Terumasa Kato, Yoshiya Ota, Shin-ichi Matsuoka,* Koji Takagi, Masato Suzuki
J. Org. Chem.   78(17) 8739-8747   Sep 2013   [Refereed]
N-Heterocyclic Carbene-Catalyzed Cyclotetramerization of Acrylates
Shin-ichi Matsuoka,* Shoko Namera, Atsushi Washio, Koji Takagi, and Masato Suzuki
Org. Lett.   15(23) 5916-5919   Nov 2013   [Refereed]
Synthesis and Optical Properties of Poly(p-benzamide)s bearing Oligothiophene on Amide Nitrogen Atom through Alkylene Spacer
Koji Takagi,* Katsuya Nobuke, Yuma Nishikawa, and Ryohei Yamakado
Polym. J.   45(12) 1171-1176   Dec 2013   [Refereed]
Synthesis, Reaction, and Optical Properties of Cyclic Trimer bearing 9,10-Diphenylanthracene Based on an Aromatic Tertiary Amide Skeleton
Ryohei Yamakado, Shin-ichi Matsuoka, Masato Suzuki, Daisuke Takeuchi, Hyuma Masu, Isao Azumaya, and Koji Takagi*
RSC Adv.   4(13) 6752-6760   Jan 2014   [Refereed]
Synthesis and Optoelectronic Properties of Conjugated Polymers Based on a Dithienobenzimidazole Unit in the Main Chain
Koji Takagi,* Masanori Sakaida, Kazuma Kusafuka, and Takuya Miwa
J. Polym. Sci., Part A: Polym. Chem.   52(3) 401-409   Feb 2014   [Refereed]
Synthesis and Characterization of Polythiophene Derivatives with Nitrogen Heterocycles at the Side Chain
Koji Takagi,* Eiki Kawagita, and Ryo Kouchi
J. Polym. Sci. Part A: Polym. Chem.   52(15) 2166-2174   Jun 2014   [Refereed]
Koji Takagi,* Eiki Kawagita, Ryo Kouchi, and Junpei Kawai
J. Polym. Sci. Part A: Polym. Chem.   52(23) 3383-3389   Dec 2014   [Refereed]
Solid-State Polycondensation via Ionic-to-Covalent Bond Transformation to Control Polymer Structure: Preparation of Porphyrin-Based Ladder Polymer
Masato Suzuki,* Kohei Yokota, Hiroe Tsuchida, Kazuhisa Yamoto, Masayuki Nagata, Shin-ichi Matsuoka, Koji Takagi, Kohei Johmoto, and Hidehiro Uekusa
ACS Macro Lett   4(2) 247-250   Feb 2015   [Refereed]
Ryohei Yamakado, Shin-ichi Matsuoka, Masato Suzuki, Daisuke Takeuchi, Hyuma Masu, Isao Azumaya, and Koji Takagi*
Chem.Commun.   51(26) 5710-5713   Feb 2015   [Refereed]
Synthesis and optical properties of imidazole and benzimidazole-based fused pi-conjugated compounds: Influence of substituent, counter anion, and pi-conjugated system
Koji Takagi, Kazuma Kusafuka, Yohei Ito, Koji Yamauchi, Kaede Ito, Ryoichi Fukuda, and Masahiro Ehara
J. Org. Chem.   80(14) 7172-7183   Jul 2015   [Refereed]
Amide-bridged Ladder Poly(p-phenylene): Synthesis by Direct Arylation and π-Stacked Assembly
Koji Takagi, Ryota Kato, Shun-ya Yamamoto, and Hyuma Masu
Polym. Chem.   6(38) 6792-6795   Aug 2015   [Refereed]
Fused pi-Conjugated Imidazolium Liquid Crystals: Synthesis, Self-Organization, and Fluorescent Properties
Koji Takagi, Koji Yamauchi, Seiko Kubota, Shusaku Nagano, Mitsuo Hara, Takahiro Seki, Kazuya Murakami, Yousuke Ooyama, Joji Ohshita, Masaharu Kondo, and Hyuma Masu
RSC Advances   6(11) 9152-9159   Jan 2016   [Refereed]
Synthesis and Optical Properties of Poly(N-octyl-m-benzamide)s bearing an Oligothiophene Chromophore on the Benzene Ring
Koji Takagi,* Yuma Nishikawa, Kana Shimizu, Ryohei Yamakado, and Shinri Sugimoto
Polym. J.   48(5) 605-610   May 2016   [Refereed]
Synthesis and Optical Properties of p-Conjugated Polymers containing Fused Imidazole Skeleton
Koji Takagi,* Takuya Miwa, and Hyuma Masu
Macromolecules   49    Dec 2016   [Refereed]
Molecular Design for Tuning Electronic Structure of p-Conjugated Polymers Containing Fused Dithienobenzimidazole Units
Koji Takagi,* Tomoharu Kuroda, Masanori Sakaida, and Hyuma Masu
Polymer   107 191-199   Dec 2016   [Refereed]
Synthesis of Polythiophene Derivative bearing Methoxy and Pyridine Groups at the beta-Position and Formation of an Intramolecular Hydrogen Bonding through the Polymer Reaction
Koji Takagi, Ryo Kouchi, and Junpei Kawai
Polymer   114 221-230   Mar 2017   [Refereed]
Termination Reaction of Living Poly(3-hexylthiophene) using Thiophene Grignard Reagents: Substituent Effect on the Functionalization
Koji Takagi, Junpei Kawai, and Ryo Kouchi
Polymer   177 354-363   May 2017   [Refereed]
Halogen-Bonding-Mediated and Controlled Cationic Polymerization of Isobutyl Vinyl Ether: Expanding the Catalytic Scope of 2-Iodoimidazolium Salts
Koji Takagi, Koji Yamauchi, and Hiroto Murakata
Chem. Eur. J.   23(40) 9495-9500   Jun 2017   [Refereed]
Regioselective Halogen-Magnesium Exchange Reaction of Bithiophene Derivative bearing Methoxy and Pyridine Groups at the beta-Position and Kumada Coupling Polymerization
Koji Takagi, Ryo Kouchi, and Junpei Kawai
Polym. J.   49(9) 649-654   Sep 2017   [Refereed]
Synthesis and Optical Properties of Fused pi-Conjugated Imidazole Compounds
Koji Takagi, Kaede Ito, Yoshihiro Yamada, Takuya Nakashima, Ryoichi Fukuda, Masahiro Ehara, and Daisuke Takeuchi
Chem. Lett.   46(9) 1372-1375   Sep 2017   [Refereed]
Synthesis and optical properties of ESIPT-active π-conjugated benzimidazole compounds: Influence of structure rigidification by ring fusion
Koji Takagi,* Kaede Ito, Yoshihiro Yamada, Takuya Nakashima, Ryoichi Fukuda, Masahiro Ehara, and Hyuma Masu
J. Org. Chem.   82(23) 12173-12180   Dec 2017   [Refereed]
Solid-State Esterification via Ionic-to-Covalent Bond Transformation in Ionic Molecular Crystals Consisting of Disubstituted Anthracene Anion-Cation Combinations
Masato Suzuki,* Takahiro Fujii, Yoko Naito, Kazuhisa Yamoto, Shin-ichi Matsuoka, Koji Takagi, Haruki Sugiyama, and Hidehiro Uekusa
Bull. Chem. Soc. Jpn.   91(3) 343-348   Mar 2018   [Refereed]
ESIPT Emission Behavior of Methoxy-Substituted 2-Hydroxyphenylbenzimidazole Isomers
Koji Takagi,* Yoshihiro Yamada, Ryoichi Fukuda,* Masahiro Ehara, and Daisuke Takeuchi
New J. Chem.   42(8) 5923-5928   Apr 2018   [Refereed]
Synthesis and Field-Effect Transistor Application of pi-Extended Lactam-Fused Conjugated Oligomers obtained by the Tandem Direct Arylation
Koji Takagi,* Shun-ya Yamamoto, Kenji Tsukamoto, Yuto Hirano, Mitsuo Hara, Shusaku Nagano, Yutaka Ie, and Daisuke Takeuchi
Chem. Eur. J.   24(53) 14137-14145   Sep 2018   [Refereed]
Synthesis and Structure of Optically Active Oligo(N-substituted-m-benzamide)s bearing Bithiophene Chromophore on the Benzene Ring
Koji Takagi,* Yuma Nishikawa, Kana Shimizu, Katsuya Nobuke, Ryohei Yamakado, Shinri Sugimoto, and Yoshihito Inai*
Macromol. Chem. Phys.      Nov 2018   [Refereed]
Potentially Helical Imidazole-Containing Conjugated Oligomer: Synthesis, Optical Properties, and Conformation
Koji Takagi,* Jun-ya Ohta, Kenta Sugihara, Kanami Okamura, and Yoshihiro Yamada
Polym. J.      Nov 2018   [Refereed]
Creating Elastic Organic Crystals of π-Conjugated Molecules with Bending Mechanofluorochromism and Flexible Optical Waveguide Performances
Shotaro Hayashi,* Shun-ya Yamamoto, Daisuke Takeuchi,† Yutaka Ie, and Koji Takagi*
Angew. Chem. Int. Ed.      Nov 2018   [Refereed]

Misc

 
Development and Application of Living Coordination Polymerization of Allene Derivatives by Allylnickel Catalysts
Ikuyoshi Tomita, Koji Takagi, and Takeshi Endo
56(4) 260-267   Apr 1998   [Invited]

Books etc

 
Encyclopedia of Polymeric Nanomaterials
Koji Takagi
Springer   Dec 2014   ISBN:978-3-642-29647-5
Precision Spatial Arrangement of Chromophore using Cyclic Aromatic Triamide Scaffold
Koji TAKAGI and Ryohei YAMAKADO (Part:Joint Work)
Pan Stanford Publishing   Aug 2017   
Conjugated Objects: Developments, Synthesis, and Application
Atsushi Nagai and Koji Takagi, Eds (Part:Joint Editor)
Pan Stanford Publishing   Aug 2017   

Conference Activities & Talks

 
Conjugated Oligomers Forming an Intramolecular Hydrogen Bonding: Twisted Conformation and Excited-State Intramolecular Proton Transfer
Koji Takagi
2008WMSCI   Jun 2008   
Syntheses and Optical Properties of Polythiophenes Having Branched Structure and Different Electron Density
Koji Takagi
第18回池谷カンファレンス   Oct 2008   
Controlled Assembly of Oligothiophene Chromophore by Calixamide Scaffold Obtained by Condensation of m-Aminobenzoic Acid Derivatives
Koji TAKAGI, Shinri SUGIMOTO, and Ryohei YAMAKADO
1st FAPS Polymer Congress   Oct 2009   
Imidazole-Based Conjugated Polymer Forming Successive Intramolecular Hydrogen Bonding
Koji TAKAGI・Junya OHTA・Kenta SUGIHARA
PPC11   Dec 2009   
Synthesis and Characterization of Imidazole-Based Conjugated Polymers Forming Intramolecular Hydrogen Bonding
Koji Takagi
2010ICSM   Jul 2010   

Works

 
Design and Synthesis of Blue Light-Emitting Polymer with High Efficiency
The Others   Apr 2003

Research Grants & Projects

 
Synthesis of Aromatic Polyamides and Oligoamides Decorated with Optoelectronic Functional Group
Project Year: Apr 2006 - Today
Research for synthesis and characterization of aromatic polyamides and oligoamides with electronic conductivity and light-emitting property
Development of materials applicable for photovoltaic cell and field-effect transister
Project Year: Apr 2006 - Today
Synthesis of organic optoelectronic materials for sustainable future
Synthesis of Well-Defined pi-Conjugated Polymers Including Hetero Aromatic Ring and Hetero Atom
Project Year: Apr 2005 - Today
Research for control of polymerization and improvement of materials function by introducing hetero aromatic ring and hetero atom