Considerations concerning the glass temperature of blends of miscible polymers

被引：13

作者：

Schneider, HA

机构：

[1] Inst Makromol Chem, D-79104 Freiburg, Germany

[2] Freiburger Mat Forschungszentrum, D-79104 Freiburg, Germany

来源：

POLYMER BULLETIN | 1998年 / 40卷 / 2-3期

关键词：

D O I：

10.1007/s002890050258

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

It is shown that experimental Tg vs. composition data of miscible polymer blends can be adapted by a third order Tg vs. composition equation characterized by two parameters, K-1 and K-2, which result in the supposition that besides the thermodynamically claimed favourable energetic hetero-interaction, contributions of conformational mixing entropy are responsible for miscibility. K-1 comprises mainly energetic interaction effects, whereas K-2 is due to effects of the conformational mixing entropy. It further results surprisingly that K-1 is roughly correlated with the difference of the solubility parameters of the blend components. At the moment no explanation can be offered for this observation.

引用

页码：321 / 328

页数：8

共 46 条

[1] INFLUENCE OF SOLVENT UPON COMPATIBILITY OF POLYSTYRENE AND POLY(VINYL METHYL ETHER) [J].