METHANOL TRANSPORT IN PMMA - THE EFFECT OF MECHANICAL DEFORMATION

被引：71

作者：

HARMON, JP ^{[1
]}

LEE, S ^{[1
]}

LI, JCM ^{[1
]}

机构：

[1] UNIV ROCHESTER,DEPT MECH ENGN,ROCHESTER,NY 14627

来源：

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | 1987年 / 25卷 / 12期

关键词：

DIFFUSION - Mathematical Models - METHANOL - Diffusion - POLYMERS - Deformation - THERMAL EFFECTS;

D O I：

10.1002/pola.1987.080251204

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 effect of cold work on the transport of liquid methanol in crosslinked PMMA disks has been determined at temperatures from 35-56 degree C. Deformed samples absorb at fast rates with kinetics that approach those of Fickian diffusion. Undeformed samples sorb at lower rates and the kinetics tend toward those of Case II transport. Shape recovery accompanied swelling in deformed samples. Samples saturated with methanol were desorbed in cyclohexanol. Resorption of desorbed samples showed fast rates for both deformed and undeformed samples and matched those of the absorption cycle in deformed samples. An analogy is made between the microstructure due to cold work and due to swelling.

引用

页码：3215 / 3229

页数：15

共 36 条

[1] CLASS OF MATHEMATICAL-MODELS FOR SORPTION OF SWELLING SOLVENTS IN GLASSY POLYMERS [J].