碘转移细乳液聚合制备氟代丙烯酸酯-丙烯酸十八酯共聚物  

Preparation of fluoroacrylate-stearyl acrylate copolymer by iodine transfer miniemulsion polymerization

作　　者：陈江[1] 宋金星 王胜鹏 包永忠[1] CHEN Jiang;SONG Jin-xing;WANG Sheng-peng;BAO Yong-zhong(State Key Laboratory of Chemical Engineering,College of Chemical and Biological Engineering,Zhejiang University,Hangzhou 310027,China;Transfar Zhilian Co.Ltd.,Hangzhou 311215,China)

机构地区：[1]化学工程联合国家重点实验室(浙江大学),浙江大学化学工程与生物工程学院,浙江杭州310027 [2]传化智联股份有限公司,浙江杭州311215

出　　处：《高校化学工程学报》2021年第1期65-71,共7页Journal of Chemical Engineering of Chinese Universities

摘　　要：为了制备结构可控的疏水疏油丙烯酸酯共聚物,以碘仿为链转移剂、偶氮二异丁基脒二盐酸盐(AIBA)为引发剂、十六烷基三甲基溴化铵/十六烷为主/助乳化剂,进行氟代丙烯酸酯-丙烯酸十八酯(FA-SA)碘转移细乳液共聚合。考察单体配比、聚合温度、引发剂浓度等对聚合动力学的影响,并对共聚物的结构和界面特性进行表征。结果表明:FA与SA质量比对初期聚合速率影响不大;聚合温度为60℃时,聚合速率较快,聚合转化率较高;随着AIBA浓度增大,聚合速率增大。碘仿调控的FA-SA细乳液共聚合可控性较好,符合一级动力学,具有活性自由基聚合特征。制备的FA-SA共聚物具有优异的疏水疏油特性,表面张力极低。Fluoroacrylate-stearyl acrylate(FA-SA)iodine transfer miniemulsion copolymerization was carried out to prepare hydrophobic and oleophobic acrylate copolymers with a controllable structure using iodoform as a chain transfer agent,2,2'-azobis(2-methylpropionamidine)dihydrochloride(AIBA)as an initiator,and hexadecyl trimethyl ammonium bromide/hexadecane as main/co-emulsifier.Effects of feeding monomer compositions,polymerization temperatures,and initiator concentrations on the kinetics were investigated,and the structure and interfacial properties of copolymers were characterized.The results show that FA/SA mass ratio had little effect on the initial polymerization rate.The polymerization rate and the conversion were higher at the polymerization temperature of 60℃.The polymerization rate increased with the increase of AIBA concentration.The FA-SA miniemulsion copolymerization mediated by iodoform exhibited a good controllability,a first-order kinetics and living polymerization characteristics.The prepared FA-SA copolymers had excellent hydrophobic and oleophobic properties and extremely low surface tension.

关 键 词：氟代丙烯酸酯 丙烯酸十八酯 碘转移聚合 聚合动力学 疏水疏油 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]