A2BA2-type amphiphilic liquid cystalline block copolymers by ATRP:synthesis and characterization
A2BA2-type amphiphilic liquid crystalline block copolymers containing azobenzene were synthesized by atom transfer radical polymerization (ATRP). The macroinitiator prepared by the esterification reaction between poly(ethylene glycol) (PEG) and 2,2-dichloroacetyl chloride was used to initiate the ATRP of 6-4-(4-ethoxyphenylazo) phenoxyhexyl methacrylate (M6C). The resulting macroinitiator and block copolymers were characterized by 1HNMR, gel permeation chromatography (GPC). Polarizing optical microscopy (POM) and differential scanning calorimetry (DSC) preliminarily revealed the liquid crystalline property of these block copolymers. These novel amphiphilic liquid crystalline block copolymers are promising in some areas, such as optical data storage, optical switch, and molecular devices.
A2BA2-type liquid crystal amphiphilic block copolymer atom transfer radical polymerization
Xinde Tang Nianfeng Han Jing Xu
Institute of New Materials, Shandong Jiaotong University, Jinan, Shandong 250023, China College of C Institute of New Materials, Shandong Jiaotong University, Jinan, Shandong 250023, China
国际会议
2009 International Symposium on Liquid Crystal Science and Technology(2009国际液晶科技研讨会)
昆明
英文
154-157
2009-08-02（万方平台首次上网日期，不代表论文的发表时间）