A novel synthetic method for well-defined polymers containing benzotriazole and diazobenzene chromophores

被引：9
作者：
Sun, Bin [1 ]
Zhu, Xiulin [1 ]
Zhu, Han [1 ]
Cheng, Zhenping [1 ]
Zhang, Zhengbiao [1 ]
机构：
[1] Suzhou Univ, Sch Chem & Chem Engn, Key Lab Organ Synth Jiangsu Prov, Suzhou 215006, Peoples R China
来源：
MACROMOLECULAR CHEMISTRY AND PHYSICS | 2007年 / 208卷 / 10期
关键词：
azobenzene; benzotriazoles; photoisomerization; postfunctionalization; reversible addition-fragmentation chain transfer (RAFT) polymerization;
D O I：
10.1002/macp.200700040
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
PBHEMA was prepared by RAFT polymerization in the presence of CPDN and AIBN. Diazobenzene groups were introduced into the sidechains by post-azo-functionalization. The resulting polymers containing benzotriazol and azobenzene groups exhibited higher molecular weight than original polymers, narrow MWD (M-W/M-n=1.17-1.26) degrees of functionality. Thermal stabilities and glass transition temperatures of the polymers increased with the introduction of diazo chromophores. The molecular weight of the polymer had a slight effect on the T-g of the polymer. The polymer showed partial crystallization as the diazo content increased above 36%. [GRAPHICS]
引用
收藏
页码：1101 / 1109
页数：9
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