Living polymers by the use of trithiocarbonates as reversible addition-fragmentation chain transfer (RAFT) agents: ABA triblock copolymers by radical polymerization in two steps

被引:440
作者
Mayadunne, RTA [1 ]
Rizzardo, E [1 ]
Chiefari, J [1 ]
Krstina, J [1 ]
Moad, G [1 ]
Postma, A [1 ]
Thang, SH [1 ]
机构
[1] CSIRO, Clayton, Vic 3169, Australia
关键词
Addition reactions - Agents - Carbonates - Dissociation - Free radical polymerization - Molecular weight - Polymethyl methacrylates - Polystyrenes - Reaction kinetics - Sulfur compounds;
D O I
10.1021/ma991451a
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
The use of trithiocarbonates as effective reversible addition-fragmentation chain transfer agents is demonstrated. In the presence of these agents, homopolymers and block polymers of controlled molecular weight and narrow polydispersity were prepared from styrene, methyl acrylate and methyl methacrylate. Important ABA triblock copolymers of predetermined molecular weight are accessible from these compounds by a two-step radical polymerization.
引用
收藏
页码:243 / 245
页数:3
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