Synthesis and Their Liquid Crystalline Behavior of Y-Type Miktoarm Star Mesogen-jacketed Liquid Crystalline Copolymer

被引：0
|
作者：
Chen Jianfang [1 ,2 ]
Ling Aihua [2 ]
Wang Xiayu [2 ]
机构：
[1] Hunan Inst Engn, Dept Chem & Chem Engn, Xiangtan 411104, Peoples R China
[2] Xiangtan Univ, Inst Polymer Sci, Coll Chem, Xiangtan 411105, Peoples R China
来源：
ACTA CHIMICA SINICA | 2011年 / 69卷 / 08期
关键词：
miktoarm star; atom transfer radical polymerization; mesogen-jacketed liquid crystal polymer; liquid crystalline behavior; FREE-RADICAL SYNTHESIS; DIBLOCK COPOLYMERS; POLYMERIZATION; POLYSTYRENE; POLYMERS;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Y-type miktoarm star Mesogen-jacketed liquid crystal copolymers carrying one polystyrene (PS) and two poly{2,5-bis[(4-methoxyphenyl)-oxycarbonyl] styrene} arms (PMPCS) were synthesized by combination of atom transfer radical polymerization (ATRP) and ATRP method of chemically modified derivatives. Their architectures were confirmed by GPC and H-1 NMR spectroscopy. The liquid crystalline behavior of these copolymers was studied by DSC, POM and WXAD. Their liquid-crystalline phase intently depends on the molecular weights of the rigid rod arm of miktoarm star copolymers. The liquid-crystalline phase only appeared after a certain length of PMPCS.
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页码：993 / 998
页数：6
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