Synthesis of dithiocarbamate bearing azobenzene group and use for RAFT polymerization of vinyl monomers

被引:15
作者
Wan, Xiaoming [1 ]
Zhu, Xiulin [1 ]
Zhu, Jian [1 ]
Zhang, Zhengbiao [1 ]
Cheng, Zhenping [1 ]
机构
[1] Suzhou Univ, Key Lab Organ Synth Jiangsu Prov, Sch Chem & Chem Engn, Suzhou 215006, Peoples R China
关键词
azobenzene; dithiocarbamate; fluorescence; gel permeation chromatography (GPC); methyl methacrylate; reversible addition-fragmentation chain transfer (RAFT); UV-vis spectroscopy;
D O I
10.1002/pola.22045
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A novel dithiocarbamate bearing azobenzene group, 2-(phenylazo-phenoxy-carbonyl) prop-2-yl 9H-carbazole-9-carbodithioate (A-PCDT), was synthesized and used as a RAFT agent in the polymerization of methyl methacrylate (MMA). The results showed that the controllability to the polymerization of MMA was promoted with A-PCDT as RAFT agent compared to 2-(ethoxycarbonyl) prop-2-yl 9H-carbazole-9-carbodithioate (EPCDT) under the same experimental conditions. The reason was attributed to the higher chain transfer constant of APCDT than that of EPCDT in the presence of more bulkier and more electrophilic azobenzene moiety. In addition, the RAFT polymerizations of St and methylacrylate (MA) using APCDT as the RAFT agent were also carried out. The ultraviolet spectrum and fluorescence spectrum of the obtained polymers were investigated. (c) 2007 Wiley Periodicals, Inc.
引用
收藏
页码:2886 / 2896
页数:11
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