COMBINATORY ENTROPY IN CRYSTALLINE POLYMER-SOLUTIONS

被引：3

作者：

SAEKI, S

机构：

[1] Department of Materials Science and Engineering, Fukui University, Fukui

来源：

POLYMER | 1995年 / 36卷 / 07期

关键词：

COMBINATORY ENTROPY; CRYSTALLINE POLYMER SOLUTION; FLORY-HUGGINS THEORY;

D O I：

10.1016/0032-3861(95)95920-V

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 combinatory entropy in the ternary solution of crystalline polymers (2), with n(c) rod-like parts and c segments per part, with solvent (1) and holes (0) has been derived based on the Flory-Huggins theory, which is given by: [GRAPHICS] where R is the gas constant, z is the coordination number, e is communal entropy, m=r-n(c)(c - 1), A = [phi0 + phi1 + (phi2/r)], theta = n(c)c/r, r is the total number of segments per polymer chain, and phi(i) is the volume fraction of component i. Two types of cluster formation by the rod-like parts in the crystalline polymer solution are considered: cluster formations by different polymer chains, and by a single polymer chain. Dependence of the cluster size on the length of the rod-like part or c has been determined based on the theory. An equation for the entropy of fusion for arbitrary crystallinity is also derived.

引用

页码：1421 / 1424

页数：4

共 12 条

[1]

Flory P. J., 1953, PRINCIPLES POLYM CHE

[2] THERMODYNAMICS OF CRYSTALLIZATION IN HIGH POLYMERS .4. A THEORY OF CRYSTALLINE STATES AND FUSION IN POLYMERS, COPOLYMERS, AND THEIR MIXTURES WITH DILUENTS [J].