文献类型：期刊文献

英文题名：Effects of main chain and acceptor content on phase behaviors of hydrogen-bonded main-chain/side-chain combined liquid crystalline polymers

作者：Yang, Shuai-Qi[1,2] Qu, Wei[1,3] Pan, Hong-Bing[1] Zhang, Yu-Dong[1] Zheng, Shi-Jun[2] Fan, Xing-He[1] Shen, Zhihao[1]

第一作者：Yang, Shuai-Qi

通信作者：Shen, ZH[1];Zheng, SJ[2]

机构：[1]Peking Univ, Coll Chem & Mol Engn, Ctr Soft Matter Sci & Engn, Beijing Natl Lab Mol Sci,Minist Educ,Key Lab Poly, Beijing 100871, Peoples R China;[2]Zhengzhou Univ, Coll Mat Sci & Engn, Zhengzhou 450000, Peoples R China;[3]Chinese Acad Forestry, CRIWI, Res Inst Wood Ind, 2 Dongxiaofu,Xiangshan Rd, Beijing 100091, Peoples R China

年份：2016

卷号：84

起止页码：355-364

外文期刊名：POLYMER

收录：;EI(收录号：20160401838278);Scopus(收录号：2-s2.0-84954526218);WOS:【SCI-EXPANDED(收录号:WOS:000369146100040)】；

基金：This work is supported by the National Natural Science Foundation of China (Grants: 21174006 and 20990232).

语种：英文

外文关键词：Main-chain/side-chain combined liquid; crystalline polymer; Hydrogen-bonding; Hierarchical structure

摘要：Main-chain/side-chain combined liquid crystalline polymers (MCSCLCPs) are usually difficult to synthesize and their degrees of polymerization are relatively low, which bring difficulties in studying their structureeproperty relationships. In order to solve this problem, we prepared a new series of MCSCLCPs containing mesogen-jacketed liquid crystalline polymer (MJLCP) main chains via hydrogen-bonding (H-B). A pyridine derivative with a triphenylene (Tp) unit is the H-B acceptor. In addition to the temperature dependence, the phase behavior of the resulting complex is strongly influenced by the content of the H-B acceptor and the rigidity of the side-chain core of the MJLCP. The resulting complexes exhibit different phase structures: (1) a columnar nematic phase or a smectic A (SmA) phase formed by the supramolecular MJLCP chain as a whole; (2) hierarchical nanostructures including a hexagonal columnar phase or a SmA phase of the whole polymer chain plus a discotic nematic phase associated with the Tp moieties. (C) 2016 Elsevier Ltd. All rights reserved.