Synthesis and photoresponsive behavior of the high-Tg azobenzene polymers via RAFT polymerization

被引：31
作者：
Xue, Xiaoqiang [1 ]
Zhu, Jian [1 ]
Zhang, Zhengbiao [1 ]
Zhou, Nianchen [1 ]
Zhu, Xiulin [1 ]
机构：
[1] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Key Lab Organ Synth Jiangsu Prov, Suzhou 215006, Peoples R China
来源：
REACTIVE & FUNCTIONAL POLYMERS | 2010年 / 70卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Surface-relief-grating (SRG); Reversible addition-fragmentation chain transfer (RAFT); Azo polymer; Photoresponsive; Alternating copolymerization; SURFACE-RELIEF GRATINGS; LIVING RADICAL POLYMERIZATION; FRAGMENTATION CHAIN-TRANSFER; PHOTOINDUCED BIREFRINGENCE; AZO POLYMER; MAIN-CHAIN; TRIBLOCK COPOLYMERS; FILMS; LASER; STYRENE;
D O I：
10.1016/j.reactfunctpolym.2010.04.006
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Well-defined photo-responsive alternating copolymers, poly(4-(N-maleimido)azobenzene-alt-styrene)s (PMSts), were successfully synthesized via reversible addition-fragmentation chain transfer (RAFT) polymerization. A divinyl monomer was used in this polymerization to prepare high molecular weight azobenzene polymers. These polymers had good solubility in most organic solvents, formed films well, and had high glass transition temperatures (T-g = 174-250 degrees C) and were heat resistant (T-d >320 degrees C). The photo-induced trans-cis isomerization of the copolymers was examined in chloroform solution. Surface-relief-gratings (SRGs) formed on the polymer films were also investigated using illumination from a linearly polarized Kr+ laser beam. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：456 / 462
页数：7
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