首页|A_2BA_2-type amphiphilic liquid cystalline block copolymers by ATRP: synthesis and characterization

A_2BA_2-type amphiphilic liquid cystalline block copolymers by ATRP: synthesis and characterization

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  • Trans Tech Publications Ltd
A_2BA_2-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)phenoxy]hexyl methacrylate (M6C). The resulting macroinitiator and block copolymers were characterized by H NMR, 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.

A_2BA_2-typeliquid crystalamphiphilic block copolymeratom transfer radical polymerization

Xinde Tang、Nianfeng Han、Jing Xu

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Institute of New Materials, Shandong Jiaotong University, Jinan, Shandong 250023, China College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China

Institute of New Materials, Shandong Jiaotong University, Jinan, Shandong 250023, China

2010

10.4028/www.scientific.net/KEM.428-429.154

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.428/429
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