GLASS-TRANSITION TEMPERATURE OF POLYSTYRENE MICROPARTICLES

被引：41

作者：

DING, JF

XUE, G

DAI, QP

CHENG, RS

机构：

[1] Department of Chemistry, Nanjing University, Nanjing

来源：

POLYMER | 1993年 / 34卷 / 15期

关键词：

POLYSTYRENE; MICROPARTICLES; DSC; GLASS TRANSITION TEMPERATURE;

D O I：

10.1016/0032-3861(93)90412-4

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Polystyrene (PS) microparticles were prepared by freeze-drying a very dilute cyclohexane solution and by spraying a dilute benzene solution into methanol. D.s.c. studied showed that the microparticles have a transition at a temperature lower than the T(g) of bulk PS. This low temperature transition was regarded as the glass transition of the PS microparticles, and it was suggested that the decrease in T(g) of the particles was due to their high surface area to volume ratio.

引用

页码：3325 / 3327

页数：3

共 5 条

[1]

De Gennes P.G., 1979, SCALING CONCEPTS POL, P54

[2]

DING JF, 1992, S POLYM, P576

[3] STUDY OF MICROPHASE SEPARATION IN BLOCK CO-POLYMERS OF STYRENE AND ALPHA-METHYLSTYRENE IN THE GLASS-TRANSITION REGION USING QUANTITATIVE THERMAL-ANALYSIS [J].