RDF INVESTIGATIONS ON CONCENTRATED-SOLUTIONS OF POLY(PARA-PHENYLENE-1,3,4-OXADIAZOLE) IN SULFURIC-ACID

被引：8

作者：

HOFMANN, D

WEIGEL, P

GANSTER, J

FINK, HP

机构：

[1] Institute of Polymer Chemistry 'Erich Correns', Academy of Sciences, the GDR, 1530 Teltow-Seehof

来源：

POLYMER | 1991年 / 32卷 / 02期

关键词：

POLY(PARA-PHENYLENE-1,3,4-OXADIAZOLE); SULFURIC ACID; WIDE-ANGLE X-RAY SCATTERING; RADIAL DISTRIBUTION FUNCTION;

D O I：

10.1016/0032-3861(91)90015-B

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Reduced radial distribution functions (RDFs) for non-crystalline solutions of poly(p-phenylene-1,3,4-oxadiazole) (POD) in H2SO4 have been determined and discussed for the first time. In solutions of up to 14 wt% POD in H2SO4 the POD monomeric units act as simple perturbations of the correlation lattice of the pure solvent. Between 14 and 15 wt% POD content a phase transition from isotropic solution to crystal solvates and H2SO4 occurs. The short range interactions of POD molecules with the correlation lattice of a 96.2 wt% aqueous H2SO4 solvent are considerably stronger than for the same POD content in a 100% H2SO4 solvent.

引用

页码：284 / 289

页数：6

共 26 条

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