SOLVENT-INDUCED CRYSTALLIZATION OF SYNDIOTACTIC POLYSTYRENE IN DIFFERENT LIQUIDS - SORPTION AND DIFFUSION PHENOMENA

被引：48

作者：

VITTORIA, V ^{[1
]}

RUSSO, R ^{[1
]}

DECANDIA, F ^{[1
]}

机构：

[1] UNIV SALERNO, IST INGN CHIM & ALIMENTARE, I-84081 SALERNO, ITALY

来源：

POLYMER | 1991年 / 32卷 / 18期

关键词：

CRYSTALLIZATION; SYNDIOTACTIC POLYSTYRENE; SORPTION; DIFFUSION;

D O I：

10.1016/0032-3861(91)90541-P

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Transport properties of different liquids inducing crystallization in syndiotactic polystyrene (sPS) were investigated at 25-degrees-C. The weight uptake kinetics in the different liquids imply Fickian behaviour, with the exclusion of n-hexane and cyclohexane for which the weight uptake starts after an induction time. The equilibrium concentration of the different liquids in sPS is a function of the solubility parameter and shows a maximum with respect to chloroform, indicating a maximum in the polymer-solvent interaction. The swollen samples are birefringent but appear substantially amorphous on the basis of the X-ray diffractograms. After drying a well developed crystalline order appears, and the diffractograms indicate the presence of solvated structures, characterized by chains in helical conformation.

引用

页码：3371 / 3375

页数：5

共 29 条

[1]

ALFREY T., 1996, J POLYM SCI C, V12, P249, DOI DOI 10.1002/P0LC.5070120119

[2]

Blumstein A., 1985, POLYM LIQUID CRYSTAL

[3]

BRNADRUP J, 1966, POLYM HDB

[4]

CHATANI Y, 1988, POLYM PREPR JPN, V37, P12

[5]

Comyn J., 1985, POLYM PERMEABILITY, V1st

[6]

Crank J., 1979, MATH DIFFUSION, V2nd

[7] DRAWING AND DYNAMIC-MECHANICAL BEHAVIOR OF SYNDIOTACTIC POLYSTYRENE AN INTRODUCTION [J].

DECANDIA, F ;

ROMANO, G ;

RUSSO, R ;

VITTORIA, V .

COLLOID AND POLYMER SCIENCE, 1990, 268 (08) :720-725

[8]

DESAI AB, 1974, J POLYM SCI POL SYM, P291

[9] MOLECULAR MODELING OF POLYMERS .6. INTRAMOLECULAR CONFORMATIONAL-ANALYSES AND MOLECULAR-DYNAMICS OF SYNDIOTACTIC POLYSTYRENE [J].

DOHERTY, DC ;

HOPFINGER, AJ .

MACROMOLECULES, 1989, 22 (05) :2472-2477

[10]

GRASSI A, 1987, GAZZ CHIM ITAL, V19, P2465

← 1 2 3 →