TACTICITY EFFECTS ON POLYMER BLEND MISCIBILITY

被引:48
作者
BEAUCAGE, G
STEIN, RS
HASHIMOTO, T
HASEGAWA, H
机构
[1] UNIV MASSACHUSETTS,DEPT POLYMER SCI & ENGN,AMHERST,MA 01003
[2] KYOTO UNIV,DEPT POLYMER CHEM,KYOTO 606,JAPAN
关键词
D O I
10.1021/ma00011a062
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 miscibility of amorphous, vinyl polymers depends upon the molecular weights and tacticities of the blend components. In this investigation blends of polystyrene (PS) and poly(vinyl methyl ether) (PVME) were studied. Three isotactic poly(vinyl methyl ether) (PVME) samples, synthesized in our laboratories, and one heterotactic PVME sample have been characterized by GPC, NMR, X-ray diffraction, and DSC. Atactic PS of three molecular weights were used. Cloud-point measurements were made with a light scattering apparatus. It was found that isotactic PVME is less miscible with atactic PS than heterotactic PVME.
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页码:3443 / 3448
页数:6
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