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

Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (08): 993-998. Previous Articles Next Articles

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Y型星形杂臂甲壳型液晶聚合物的合成及其液晶行为研究

陈建芳*^,1,2，凌爱华²，王霞瑜²

(¹湖南工程学院化学化工学院湘潭 411104)
(²湘潭大学化学学院高分子材料研究所湘潭 411105)

投稿日期:2010-10-04 修回日期:2010-12-09 发布日期:2010-12-13
通讯作者: 陈建芳 E-mail:cjf1228@yahoo.com.cn

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

Chen Jianfang*^{,1,2 Ling Aihua² Wang Xiayu²}

(¹ Department of Chemistry and Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104)
(² Institute of Polymer Science, College of Chemistry, Xiangtan University, Xiangtan 411105)

Received:2010-10-04 Revised:2010-12-09 Published:2010-12-13

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 ¹H 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.

Key words: miktoarm star, atom transfer radical polymerization, mesogen-jacketed liquid crystal polymer, liquid crystalline behavior

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CHEN Jian-Fang, LING Ai-Hua, WANG Xia-Yu. Synthesis and Their Liquid Crystalline Behavior of Y-Type Miktoarm Star Mesogen-jacketed Liquid Crystalline Copolymer[J]. Acta Chimica Sinica, 2011, 69(08): 993-998.

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Y型星形杂臂甲壳型液晶聚合物的合成及其液晶行为研究

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

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