Synthesis of poly(methyl methacrylate)-silica nano-composites.: II.: Poly[methyl methacrylate-block(methyl methacrylate-co-2-hydroxyethyl methacrylate)]

被引：17
作者：
Saito, R [1 ]
Mori, Y [1 ]
机构：
[1] Tokyo Inst Technol, Dept Organ & Polymer Mat, Meguro Ku, Tokyo 1528552, Japan
来源：
JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY | 2002年 / A39卷 / 09期
关键词：
nano-composite; PMMA; silica; perhydropolysilazane; block copolymer;
D O I：
10.1081/MA-120013571
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
One kind of poly(methyl methacrylate [MMA]-block-2-hydroxyethyl methacrylate [HEMA]) block copolymer and two kinds of poly[MMA1-block-(MMA-co-HEMA)] block-random copolymers were synthesized by atom transfer radical polymerization. Then, poly(methyl methacrylate) [PMMA]-silica nano composites were synthesized by blending perhydropolysilazane (PHPS: NN-110) and block or block-random copolymers in 1,4-dioxane and casting the blend solutions. All composite films were transparent. Silica and organic domains were microphase separated in the composites. The effects of PHEMA content and blend ratio of PHPS to hydroxyl group on the microphase separation were investigated by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). The thermal properties of the composites were investigated by differential scanning calorimetry (DSC) and thermal gravitic analysis (TGA).
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收藏
页码：915 / 934
页数：20
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