引用本文:
张学健, 张凯琳, 冯莺, 赵季若, 王玉玲. 原子转移自由基悬浮聚合制备PVC-g-PMMA共聚物[J]. 应用化学,
2006, 23(5): 543-547.
Citation: ZHANG Xue-Jian, ZHANG Kai-Lin, FENG Ying, ZHAO Ji-Ruo, WANG Yu-Ling. Synthesis of PVC-g-PMMA by Atom Transfer Radical Suspension Polymerization[J]. Chinese Journal of Applied Chemistry, 2006, 23(5): 543-547.
Citation: ZHANG Xue-Jian, ZHANG Kai-Lin, FENG Ying, ZHAO Ji-Ruo, WANG Yu-Ling. Synthesis of PVC-g-PMMA by Atom Transfer Radical Suspension Polymerization[J]. Chinese Journal of Applied Chemistry, 2006, 23(5): 543-547.
原子转移自由基悬浮聚合制备PVC-g-PMMA共聚物
摘要:
研究了聚氯乙烯大分子引发剂在四水合氯化亚铁/三苯基膦催化下,通过原子转移自由基悬浮聚合制备PVC-g-PMMA共聚物的反应,考察了悬浮介质的组成对聚合活性的影响。通过改变悬浮介质的组成,实现了聚氯乙烯大分子引发甲基丙烯酸甲酯原子转移自由基"活性"/可控悬浮聚合。采用IR、NMR、GPC技术对共聚物结构进行了表征。
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关键词:
- 聚氯乙稀
- / 甲基丙烯酸甲酯
- / 原子转移自由基悬浮聚合
English
Synthesis of PVC-g-PMMA by Atom Transfer Radical Suspension Polymerization
Abstract:
The atom transfer radical suspension polymerization(ATRP) of methyl methacrylate(MMA) initiated by poly(vinyl chloride)(PVC) and catalyzed by iron dichloride tetrahydrate/triphenyl phosphine complexes was studied in different suspension systems at 80℃.The systems included ethanol,toluene/ethanol,toluene/H2O,H2O,H2O/Poly(vinyl alcohol)(PVA),and H2O/PVA/Dioctyl phthalate(DOP).A linear dependence of ln [M0]/[M] on reaction time was observed for only two suspension systems,toluene/ethanol and H2O/PVA/DOP,and a linear increase with reaction time of the number average molecular weight of copolymer PVC-g-PMMA was observed.The structures of the copolymers were characterized by IR, 1H NMR,GPC.The grafting efficiency of MMA were 6.7%,17.8%,26.0%,35.1%,respectively after polymerization of 6,15,21,27 h.
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