Controlled free-radical polymerization of 2-vinylpyridine in the presence of nitroxides

被引：34
作者：
Chalari, I [1 ]
Pispas, S [1 ]
Hadjichristidis, N [1 ]
机构：
[1] Univ Athens, Dept Chem, Athens 15771, Greece
来源：
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 2001年 / 39卷 / 17期
关键词：
free-radical polymerization; stable nitroxides; 2-vinylpyridine; random copolymers; block copolymers;
D O I：
10.1002/pola.1268
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Bulk free-radical polymerization of 2-vinylpyridine (2VP) in the presence of 2,2,6,6-tetramethylpiperidine-N-oxyl, (TEMPO) was studied under different conditions (temperature and presence of additives). Linear poly-(2-vinylpyridine) with a narrow molecular weight distribution and controllable molecular weight was prepared in the presence of acetic anhydride at 95 degreesC up to a conversion of 66%. At higher conversions side reactions became very important (pseudoliving polymerization). By applying this procedure, well-defined random copolymers of 2VP with styrene or tert-butylmethacrylate as well as block copolymers of 2VP with styrene were synthesized. (C) 2001 John Wiley & Sons, Inc.
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页码：2889 / 2895
页数：7
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