ANTIPLASTICIZATION AND VOLUMETRIC BEHAVIOR IN GLASSY-POLYMERS

被引：114

作者：

VRENTAS, JS

DUDA, JL

LING, HC

机构：

[1] Pennsylvania State Univ, University, Park, PA, USA, Pennsylvania State Univ, University Park, PA, USA

来源：

MACROMOLECULES | 1988年 / 21卷 / 05期

关键词：

MIXTURES; -; Concentration; PLASTICS;

D O I：

10.1021/ma00183a042

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A model is proposed for understanding changes in the volumetric and the free-volume properties of a glassy polymer upon addition of a low molecular weight diluent. The proposed theory for volumetric behavior appears to describe the negative departures from volume additivity that have been observed experimentally in glassy polymer-diluent systems. An expression is derived for the concentration dependence of the specific hole free volume in a glassy polymer-diluent mixture. This expression is used to explain antiplasticization behavior in glassy polymers and to rank the antiplasticization effectiveness of various diluents that are added to a particular polymer glass.

引用

页码：1470 / 1475

页数：6

共 15 条

[1] Thermal expansion and second-order transition effects in high polymers part I experimental results [J].