Design, Synthesis, and Characterization of a Combined   Main-Chain/Side-Chain Liquid Crystalline Polymer Based on   Mesogen-Jacketed Liquid Crystal Polymer via Atom Transfer Radical   Polymerization

doi:10.1002/pola.23035

CORC > 北京大学 > 化学与分子工程学院

	Design, Synthesis, and Characterization of a Combined Main-Chain/Side-Chain Liquid Crystalline Polymer Based on Mesogen-Jacketed Liquid Crystal Polymer via Atom Transfer Radical Polymerization
	Xie, Helou ; Hu, Tianhui ; Zhang, Xuefei ; Zhang, Hailaing ; Chen, Erqiang ; Zhou, Qifeng
刊名	journal of polymer science part a polymer chemistry
	2008
关键词	atom transfer radical polymerization (ATRP) liquid-crystalline polymer (LCP) main-chain/side-chain liquid crystalline polymer mesogen-jacketed liquid crystalline polymer phase behavior LIVING CATIONIC POLYMERIZATION MOLECULAR-WEIGHT SIDE-CHAINS THERMOTROPIC POLYPEPTIDES PHASE STRUCTURES MESOMORPHIC BEHAVIOR MODEL COMPOUNDS RIGID-ROD POLYESTER TRANSITIONS
DOI	10.1002/pola.23035
英文摘要	A novel combined main-chain/side-chain liquid crystalline polymer based on mesogen-jacketed liquid crystal polymers (MJLCPs) containing two biphenyls per mesogenic core of MJLCPs main chain, poly(2,5-bis{[6-(4-butoxy-4'-oxy-biphenyl)hexyl]oxycarbonyl} styrene) (P1-P8) was successfully synthesized via atom transfer radical polymerization (ATRP). The chemical structure of the monomer was confirmed by elemental analysis, H-1 NMR, and C-13 NMR. The molecular characterizations of the polymer with different molecular weights (P1-P8) were performed with H-1 NMR, gel permeation chromatography (GPC), and thermogravimetric analysis (TGA). Their phase transitions and liquid-crystalline behaviors of the polymers were investigated by differential scanning calorimetry (DSC) and polarized optical microscope (POM). We found that the polymers P1-P8 exhibited similar behavior with three different liquid crystalline phases upon heating to or cooling in addition to isotropic state, which should be related to the complex liquid crystal property of the side-chain and the main-chain. Moreover, the transition temperatures of liquid crystalline phases of P1-P8 are found to be dependent on the molecular weight. (C) 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 7310-7320, 2008; Polymer Science; SCI(E); EI; 19; ARTICLE; 22; 7310-7320; 46
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/247930]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Xie, Helou,Hu, Tianhui,Zhang, Xuefei,et al. Design, Synthesis, and Characterization of a Combined Main-Chain/Side-Chain Liquid Crystalline Polymer Based on Mesogen-Jacketed Liquid Crystal Polymer via Atom Transfer Radical Polymerization[J]. journal of polymer science part a polymer chemistry,2008.
APA	Xie, Helou,Hu, Tianhui,Zhang, Xuefei,Zhang, Hailaing,Chen, Erqiang,&Zhou, Qifeng.(2008).Design, Synthesis, and Characterization of a Combined Main-Chain/Side-Chain Liquid Crystalline Polymer Based on Mesogen-Jacketed Liquid Crystal Polymer via Atom Transfer Radical Polymerization.journal of polymer science part a polymer chemistry.
MLA	Xie, Helou,et al."Design, Synthesis, and Characterization of a Combined Main-Chain/Side-Chain Liquid Crystalline Polymer Based on Mesogen-Jacketed Liquid Crystal Polymer via Atom Transfer Radical Polymerization".journal of polymer science part a polymer chemistry (2008).