Synthesis of Degradable Copolymer Networks Containing Hemiacetal Components and Well-Defined Backbones

被引：2
作者：
Sui, Xince [1 ]
Fu, Zhifeng [1 ]
Shi, Yan [1 ]
机构：
[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing 100029, Peoples R China
来源：
JOURNAL OF APPLIED POLYMER SCIENCE | 2011年 / 121卷 / 03期
关键词：
copolymerization; networks; degradation; FRAGMENTATION CHAIN TRANSFER; LIVING RADICAL POLYMERIZATION; TRANSFER RAFT POLYMERIZATION; EMULSION POLYMERIZATION; ANIONIC-POLYMERIZATION; METHYL-METHACRYLATE; FACILE SYNTHESIS; POLYMERS; TEMPERATURE; STYRENE;
D O I：
10.1002/app.33589
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
A novel copolymer network was prepared using divinyl ether bis[4-(vinyloxy)butyl] (4-methyl-1,3-phenylene) biscarbamate (BECT) as crosslinking agent. First, the backbone chains were synthesized by the copolymerization of acrylic acid (AA) and methyl methacrylate (MMA) using reversible addition-fragmentation chain-transfer technique. The molecular weight of poly(AA-co-MMA) was well-controlled, and the polydispersity was low. Carboxyl group on the poly(AA-co-MMA) chains then reacted with BECT in the presence of pyridinium p-toluenesulfonate, generating a copolymer network with hemiacetal component in the crosslinking segment. After being treated in strong acid, this copolymer network was able to be degraded owing to the hemiacetal structure, but the backbone chains remained intact. The copolymer network was stable in basic or neutral environment. (c) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 121: 1860-1865, 2011
引用
收藏
页码：1860 / 1865
页数：6
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