Synthesis of poly(ethylene glycol) block copolymers by a redox process and their spectral characterization

被引：13
|
作者：
Nagarajan, S
Sabdham, K
Srinivasan, V
机构：
[1] Polymer Division, Central Leather Research Institute, Adyar
来源：
MACROMOLECULAR RAPID COMMUNICATIONS | 1996年 / 17卷 / 04期
关键词：
D O I：
10.1002/marc.1996.030170408
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Novel block copolymers of poly(ethylene glycol) (PEG) with acrylamide (AAm) and methacrylic acid (MAA) were synthesized using a redox system consisting of eerie ions and PEG in aqueous acidic medium. The molecular weight of PEG in the redox system was varied to obtain a series of block copolymers with differing molecular weights of PEG segment. The polymerization proceeded Yin macroradical generation, which was substantiated by ESR spectroscopy. This macroradical acted as a redox macroinitiator for the block copolymerization of the vinyl monomers. The formation of the block copolymers was confirmed by fractional precipitation technique.
引用
收藏
页码：261 / 267
页数：7
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