Synthesis of polycarbonate-poly(methyl methacrylate) copolymer via sonochemical polymerization of methyl methacrylate in polycarbonate solution

被引：8
|
作者：
Choi, Mikyung [1 ]
Lee, Kyunghee [1 ]
Lee, Juhyun [1 ]
Kim, Hyungsu [1 ]
机构：
[1] Dankook Univ, Appl Rheol Ctr, Dept Chem Engn, Seoul 140714, South Korea
来源：
MACROMOLECULAR SYMPOSIA | 2007年 / 249卷
关键词：
copolymerization; poly(methyl methacrylate); polycarbonate; sonochemical polymerization;
D O I：
10.1002/masy.200750403
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Methyl methacrylate (MMA) was polymerized in the presence of polycarbonate (PC) by ultrasonic irradiation-initiated polymerization. The resulting products consisted of mixtures of homopolymers of poly(methyl methacrylate) (PMMA), PC and PC-PMMA copolymer because of the homopolymerization of MMA itself and copolymerization with macroradicals of PC. Formation of the PC-PMMA copolymer was confirmed by FTIR analysis of the reaction products after a proper extraction of free PMMA from the mixture. In order to verify the effectiveness of the PC-PMMA copolymer as a compatibilizer for PC/styrene-coacrylonitrile (SAN) blend, 5 phr of PC-PMMA was added during melt mixing of PC/ SAN in a batch mixer. It was found from the investigation of morphology and rheological properties that interphase of SAN and PC was fortified by numerous ligaments of PC-PMMA copolymer, which resulted in increase of melt viscosity and storage modulus of the blend.
引用
收藏
页码：350 / 356
页数：7
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