Liquid Crystalline π-Conjugated Copolymers Bearing a Pyrimidine Type Mesogenic Group

作者: Kohsuke Kawabata , Hiromasa Goto

DOI: 10.3390/MA2010022

关键词:

摘要: Phenylene-thiophene-based liquid crystalline π-conjugated copolymers bearing mesogenic groups as side chains were synthesized via a Stille polycondensation reaction and confirmed to exhibit nematic crystal phase at appropriate temperatures. The formation of phase, but not smectic indicates cooperation the main chain in main-chain/side-chain phase. generation polarons charge carriers during in-situ vapor doping iodine is increase with progresses, exhibiting Dysonian paramagnetic behavior typical conductive polymers.

参考文章(19)
Shaw H. Chen, Brooke M. Conger, John C. Mastrangelo, Andrew S. Kende, Dong U. Kim, Synthesis and Optical Properties of Thermotropic Polythiophene and Poly(p-phenylene) Derivatives Macromolecules. ,vol. 31, pp. 8051- 8057 ,(1998) , 10.1021/MA980945P
Kenji Urayama, Selected Issues in Liquid Crystal Elastomers and Gels Macromolecules. ,vol. 40, pp. 2277- 2288 ,(2007) , 10.1021/MA0623688
Kensuke Osada, Masao Koike, Hirotaka Tagawa, Masatoshi Tokita, Junji Watanabe, Thermotropic Liquid Crystals of Main‐Chain Polyesters having a Mesogenic 4,4′‐Biphenyldicarboxylate Unit, 14 Macromolecular Chemistry and Physics. ,vol. 205, pp. 1051- 1057 ,(2004) , 10.1002/MACP.200300258
Sang Jun Choi, Sung Ho Jin, Jong-Wook Park, Hyun Nam Cho, Sam Kwon Choi, Design and synthesis of a new side-chain liquid crystalline polymer by metathesis polymerization Macromolecules. ,vol. 27, pp. 309- 311 ,(1994) , 10.1021/MA00079A048
Hiromasa Goto, Xiaoman Dai, Takenori Ueoka, Kazuo Akagi, Synthesis and Properties of Polymers from Monosubstituted Acetylene Derivatives Bearing Ferroelectric Liquid Crystalline Groups Macromolecules. ,vol. 37, pp. 4783- 4793 ,(2004) , 10.1021/MA035765G
Robert Saf, Petra Swoboda, Andreas Lechner, Klaus Hummel, Rainer Czaputa, Synthesis and characterization of conjugated polymers with imino nitroxide groups Macromolecular Chemistry and Physics. ,vol. 197, pp. 1439- 1447 ,(1996) , 10.1002/MACP.1996.021970421
Zhonghua Peng, Jianheng Zhang, Bubin Xu, New poly(p-phenylene vinylene) derivatives exhibiting high photoluminescence quantum efficiencies Macromolecules. ,vol. 32, pp. 5162- 5164 ,(1999) , 10.1021/MA990217H
S. Samitsu, T. Iida, M. Fujimori, S. Heike, T. Hashizume, T. Shimomura, K. Ito, Conductivity measurements of PEDOT nanowires on nanoelectrodes Synthetic Metals. ,vol. 152, pp. 497- 500 ,(2005) , 10.1016/J.SYNTHMET.2005.07.213
C. Huang, Q.M. Zhang, A. Jákli, Nematic anisotropic liquid-crystal gels-self-assembled nanocomposites with high electromechanical response Advanced Functional Materials. ,vol. 13, pp. 525- 529 ,(2003) , 10.1002/ADFM.200304322
Gerd H. F. Bergmann, Heino Finkelmann, Virgil Percec, Mingyang Zhao, Liquid‐crystalline main‐chain elastomers Macromolecular Rapid Communications. ,vol. 18, pp. 353- 360 ,(1997) , 10.1002/MARC.1997.030180501