摘要
以过硫酸铵为引发剂,采用半间歇式无皂乳液聚合法合成了P(NIPAM-co-AAc)共聚物,采用化学分析法测定了不同单体配比下共聚物的组成,采用FR法、KT法及YBR计算法得到单体竞聚率。结果表明,异丙基丙烯酰胺与丙烯酸共聚的单体竞聚率分别为0.4416和0.2558,两种单体都倾向于与另一种单体聚合形成交替共聚物。
The copolymer of N-isopropylacrylamide and acrylic acid was synthesized in semi-batch surfactant- free emulsion polymerization system using ammonium persulfate as initiator. The copolymer composition of poly（NI- PAM-co-AAc） was measured by chemical analysis. Reactivity ratios of monomers were evaluated by FR, KT and YBR methods. The results showed that the reactivity ratios of the N-isopropylacrylamide and acrylic acid were 0. 4416 and 0. 2558 respectively, which indicated that N-isopropylacrylamide and acrylic acid are prone to copolymerize with each other.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2013年第16期1-4,共4页
Materials Reports
基金
国家自然科学基金(21276164)
国家科技支撑计划(2011BAC06B11)
关键词
竞聚率
异丙基丙烯酰胺
丙烯酸
共聚合
reactivity ratio, N-isopropylacrylamide, acrylic acid, copolymerization
