2-丙烯酰胺基-2-甲基丙磺酸(AMPS)稳定无皂乳液聚合的研究  

Polymerization Study of the Emulsifier-Free Latices in the Presence of AMPS

作　　者：范欣[1] 范平[2] 李敏[1] 吴跃焕[1] 李松栋[1] 

机构地区：[1]太原工业学院化学与化工系,山西太原030008 [2]中北大学材料科学与工程学院,山西太原030051

出　　处：《中北大学学报（自然科学版）》2015年第3期348-353,共6页Journal of North University of China(Natural Science Edition)

基　　金：山西省科技攻关项目(20140313019-3);太原工业学院院基金资助项目(2014LY02)

摘　　要：以反应性乳化剂2-丙烯酰胺基-2-甲基丙磺酸(AMPS)为功能性单体,与苯乙烯、甲基丙烯酸甲酯、丙烯酸丁酯进行无皂乳液聚合.详细讨论了AMPS加入量不同时对乳胶粒子粒径、分子量及涂膜吸水率、耐水性、硬度的影响.结果表明:在聚合过程中随着AMPS加入量的增多,粒径出现先减小后增大的趋势,重均分子量则先增大后急剧减小.同时涂膜的吸水率升高,耐水性下降,硬度也随之下降.The 2-acrylamido-2-methylpropane sulfonic acid（AMPS）was used as the surfmer for the styrene（St）,methyl methacrylate（MMA）and n-butyl acrylate（BA）emulsifier-free emulsion copolymerization system.The influences of the amount of AMPS on the properties of the latices,such as the particle size,molecular weight distribution,particles morphology were studied.In addition,the influences of the amount of AMPS on physical properties of the obtained copolymers,such as water absorbance,water resistance and the film hardness were also investigated.The results show that,with the increasing of the AMPS amount,the particle size appeared to decrease first and increase later,while the molecular weight appeared to increases first and decrease sharply.Meanwhile,water absorbance increased,water resistance and the film hardness decreased with AMPS increased.

关 键 词：反应型乳化剂 无皂乳液聚合 2-丙烯酰胺基-2-甲基丙磺酸 

分 类 号：TQ316.33[化学工程—高聚物工业]