两性离子共聚物P(AM-DMAPAAS)竞聚率的测定  

Investigation of the reactivity ratios of zwitterionic copolymer P(AM-DMAPAAS)

作　　者：毛程[1] 

机构地区：[1]克拉玛依职业技术学院石化工程系,新疆克拉玛依833600

出　　处：《化工科技》2012年第3期33-35,共3页Science & Technology in Chemical Industry

基　　金：黑龙江省自然科学基金重点项目(ZJG0507)

摘　　要：在NaCl溶液中采用自由基聚合制备了同时含正负离子基团的磺基甜菜碱型两性离子共聚物P(AM-DMAPAAS),考察单体投料比与共聚物组成之间的关系,采用Fineman-Ross法和Kelen-Tudos法对2种共聚单体竞聚率进行了研究。结果表明,DMAPAAS和AM的竞聚率分别为0.305 57和0.776 67。Zwitterionic copolymers P（AM-DMAPAAS） containing sulfobetaine groups were synthesized by copolymerization of acrylamide （AM） and dimethylaminoethyl methacrylate（DM）in aqueous solutions. The structure and composition of the copolymers were characterized by FTIR spectroscopy and 1H-NMR. Reactivity rates of DMAPAAS and AM had been determined to be 0. 305 57 and 0. 776 67 according to Finemann-Ross equation and Kelen-Tudos equation. The experimental results showed that the copolymerization of DMAPAAS and AM is closer to alternative copolymerization.

关 键 词：两性离子聚合物 反聚电解质溶液性质 共聚 竞聚率 

分 类 号：O633.2[理学—高分子化学]