[1]姜扣琴,黄文艳,刘　静,等.支化聚甲基丙烯酸甲酯的合成及表征[J].常州大学学报(自然科学版),2009,(02):1-4.
　JIANG Kou -qin,H UANG Wen -yan,LIU Jing,et al.Synthesis and Characterization of Branched Polymethyl Methacrylate[J].Journal of Changzhou University(Natural Science Edition),2009,(02):1-4.
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支化聚甲基丙烯酸甲酯的合成及表征()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2009年02期
页码:
1-4
栏目:
出版日期:
2009-06-25

文章信息/Info

Title:
Synthesis and Characterization of Branched Polymethyl Methacrylate
作者:
姜扣琴;  黄文艳;  刘　静;  任　强;  蒋必彪
江苏工业学院材料科学与工程学院, 江苏 常州 213164
Author(s):
JIANG Kou -qin ;  H UANG Wen -yan ;  LIU Jing ;  REN Qiang ;  JIANG Bi -biao
School of Materials Science and Eng ineering , Jiangsu Poly technic University , Changzhou 213164 , China
关键词:
支化聚合物; 原子转移自由基聚合; 双甲基丙烯酸乙二醇酯; 甲基丙烯酸甲酯
Keywords:
branched po lymer ; atom t ransfer radical po lymerization ; ethy lene g lycol dimethy l acrylate ;  methy l methacryla te
分类号:
O 63　
文献标志码:
A
摘要:
以α-溴代异丁酸叔丁酯(t-BBiB) 为引发剂, CuBr/ 2 , 2′-联吡啶(Bpy) 为催化体系, 甲基丙烯酸甲酯(M MA) 为 单体, 双甲基丙烯酸乙二醇酯(EGDMA) 为支化单体, 苯甲醚为溶剂, 在90 ℃下经原子转移自由基聚合(AT RP) 反应合成 支化聚合物。用气相色谱(GC)、凝胶渗透色谱(GPC)、多角激光散射仪(M ALLS) 等分别对聚合反应过程和聚合物性能进 行了分析和表征。研究结果表明:该体系反应初期主要生成含有悬垂双键的初级链, 后期悬垂双键被引发使初级链偶合生成支 化聚合物。随着聚合反应的进行, 分子质量增大, Zimm 相对支化因子g′变小, 支化程度变大。
Abstract:
The branching polymeri zation of methy l methacrylate was carried out via atom t ransfer radical po lymerization at 90 ℃ with ethylene glycol dimethy l acry late as the branching agent , te rt -buty l -2 - bromoisobuty rate and ani sole were used as the initiator and the solvent .The obtained polymers were characterized by GC , GPC and MALLS , etc .The formation of highly branched molecules mainly occurs at the last stages of the reactio n by the reaction of the pendent double bonds .The branching degree of the resulting po lymers increased with molecular weight .

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备注/Memo

备注/Memo:
基金项目:国家自然科学基金(20574032);江苏省自然科学基金(BK2007045) 作者简介:姜扣琴(1984 -), 女, 江苏张家港人, 硕士生;联系人:蒋必彪。
更新日期/Last Update: 2009-06-25