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苯乙烯-甲基丙烯酸月桂酯-丙烯酸共聚物的合成及性能
引用本文:谢明生,陈清松,余金凤,丁富传,陈亮.苯乙烯-甲基丙烯酸月桂酯-丙烯酸共聚物的合成及性能[J].精细与专用化学品,2011,19(2):20-24.
作者姓名:谢明生  陈清松  余金凤  丁富传  陈亮
作者单位:福建师范大学化学与材料学院,福建省高分子重点实验室,福建,福州,350007
基金项目:福建省科技计划重点项目(2006N0037);福建省科技计划重点项目(2007N0042);福建省自然科学基金项目(2009J05024)
摘    要:以苯乙烯(St)、甲基丙烯酸月桂酯(LMA)、丙烯酸(AA)为单体,过氧化苯甲酸叔丁酯为引发剂,二丙二醇二甲醚为溶剂,采用自由基聚合方法,合成苯乙烯-甲基丙烯酸月桂酯-丙烯酸共聚物。考察了引发剂用量、单体摩尔配比、反应温度对聚合物性能的影响,并用红外光谱、差示扫描量热仪、凝胶色谱等对共聚物进行表征,结果表明,合成反应的最佳工艺条件是:n(St):n(LMA):n(AA)=5.7:0.3:4,过氧化苯甲酸叔丁酯用量为5%,反应温度为125℃,得到了多分散指数为1.67,具有良好成膜性的三元丙烯酸共聚物树脂。

关 键 词:苯乙烯  甲基丙烯酸月桂酯  丙烯酸  丙烯酸共聚物

Synthesis and characterization of styrene-lauryl methacrylate-acrylic acid copolymer
XIE Mingsheng,CHEN Qingsong,YU Jin-feng,DING Fu-chuan,CHEN Liang.Synthesis and characterization of styrene-lauryl methacrylate-acrylic acid copolymer[J].Fine and Specialty Chemicals,2011,19(2):20-24.
Authors:XIE Mingsheng  CHEN Qingsong  YU Jin-feng  DING Fu-chuan  CHEN Liang
Affiliation:(College of Chemistry & Materials Science, Fujian Normal University, Fujian Province Key Laboratory of Polymer Materials, Fuzhou 350007, China)
Abstract:Styene-lauryl methacrylate-acrylic acid copolymers were prepared through radical polymerization using t-butyl peroxybenzoate (TBPB) as initiator and dimethoxy dipropyleneglycol (DPDME) as solvent. The influences of the monomer mole ratio of styene/lauryl methacrylate/acrylic acid, amount of initiator, polymerization temperature on copolymer performance were investigated. The copolymers structure is characterized by means of FTIR, GPC, DSC. The results show that the best preparation condition is:n (Styene) :n (lauryl methacrylate) : n (acrylic acid) is 5. 7 : 0. 3:4, the reaction temperature is 125℃, the TBPB amount is 5%. The terpolymers have good film-forming properties, and polydispersity index (Mz/Mw) is 1. 67.
Keywords:styrene  lauryl methacrylate  acrylic acid  acrylic copolymers
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