Glass transition temperature of mixtures of poly(methyl methacrylate-co-ethyl acrylate)

被引:0
|
作者
Nguyen, G
Matlengiewicz, M
Nicole, D
机构
[1] Polish Acad Sci, Inst Coal Chem, PL-44121 Gliwice, Poland
[2] Univ Nancy 1, Lab Chim Phys Organ & Colloidale, UMR 7565, F-54506 Vandoeuvre Les Nancy, France
关键词
poly(methyl methacrylate-co-ethyl acrylate); polymer blends; Tg; DSC; NMR;
D O I
暂无
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
DSC thermogrammes of mixtures of poly(methyl methacrylate-co-ethyl acrylate), PMMA-EA, of different microstructure of macromolecular chains, exhibit two glass transition temperatures, Tg, indicating the presence of two phases. In one phase the copolymer chains are compatible with long blocks of ethyl acrylate and the second phase is very rich in long chains of methyl methacrylate. Based on the C-13 NMR results for compositional diads distribution and DSC data, a miscibility line can be drawn when the results are presented in a form of a triangular diagram.
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页码:447 / 458
页数:12
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