Synthesis and characterization of H-type amphiphilic liquid crystalline block copolymers by ATRP

作     者：Xin De Tang Long Cheng Gao Xing He Fan Qi Feng Zhou 

作者机构：Institute of New Materials Shandong Jiaotong University Ji＇nan 250023 China Department of Polymer Science and Engineering College of Chemistry and Molecular Engineering Peking University Beijing 100871 China 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2008年第19卷第2期

页      面：237-240页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：financial support from the National Natural Science Foundation of China(No.20134020) the Science Research Fund of the Chinese Ministry of Education(No.104005) the Science Research Fund of Shandong Provincial Education Department of China(No.105D11) 

主　　题：H-type Amphiphilic Block copolymer Liquid crystalline property Atom transfer radical polymerization (ATRP) 

摘      要：H-type amphiphilic liquid crystalline block copolymers containing azobenzene were synthesized by atom transfer radical polymerization （ATRP）. Macroinitiators prepared by the esterification between poly（ethylene oxide） （PEG） and 2,2-dichloroacetyl chloride were utilized to initiate the polymerization of 6-[4-（4-ethoxyphenylazo）phenoxy]hexyl rnethacrylate （M6C）. The resulting macroinitiators and block copolymers were characterized by ^1H NMR, gel permeation chromatography （GPC）. Polarizing optical microscopy （POM） and differential scanning calorimetry （DSC） preliminarily revealed the liquid crystalline property of these block copolymers. This series of liquid crystalline block copolymers are promising in some areas, such as optical data storage, optical switch, and molecular devices.