复合引发体系合成两性离子聚合物P(AM-DMAPS)

摘要以氧化还原引发剂和偶氮类引发剂组成复合引发体系，引发两性离子单体（DMAPS）与丙烯酰胺（AM）在盐溶液中进行自由基共聚合反应，获得了甜菜碱型两性离子共聚物P(AM-DMAPS)，采用红外光谱对共聚物进行表征。考察了总单体的质量分数、引发剂用量、引发剂各组分物质的量之比、反应温度等因素对聚合物特性黏数的影响；获得最适宜反应条件：总单体的质量分数30%，引发剂用量0.025%，反应温度20 ℃，氧化还原引发剂组分与偶氮引发剂组分的物质的量之比1∶3。在该反应条件下，可获得特性黏数高达20.2 mL/g的目标产物。

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	李长海

关键词：两性离子聚合物复合引发体系共聚

Abstract： Zwitterionic copolymers （P(AM-DMAPS)）were synthesized by copolymerization of acrylamide (AM) and DMAPS in aqueous solutions, and the copolymerization was initiated with complex initiation system composed of redox initiator and azo initiator. The structure of the copolymers were characterized by FTIR spectroscopy. The effects of total monomer concentration, the amount of initiator, reaction temperature, and mole ratio of various components to initiator on intrinsic viscosity of copolymers were investigated. The optimal reaction condition are obtained: the total monomer concentration is 30%, the amount of initiator is 0.025%, reaction temperature is 20 ℃, mole ratio of redox initiator to azo initiator is 1∶3. Under these conditions, the intrinsic viscosity of copolymer is 20.2 mL/g.

Keywords： zwitterionic copolymer complex initiation system copolymerization

About author: 李长海(1973-)，男，黑龙江明水人，讲师，研究方向为催化反应工程。

引用本文:

李长海.复合引发体系合成两性离子聚合物P(AM-DMAPS)[J]. 化学工业与工程, 2011,28(6): 13-16

LI Chang-Hai.Synthesize of Zwitterionic Polymers with Complex Initiation System[J]. Chemcial Industry and Engineering, 2011,28(6): 13-16