KINETICS OF MICROPHASE SEPARATION IN CROSS-LINKED POLYMER BLENDS

被引：16

作者：

DEROUICHE, A

BETTACHY, A

BENHAMOU, M

DAOUD, M

机构：

[1] CENS,CEA,LAB LEON BRILLOUIN,CNRS,F-91191 GIF SUR YVETTE,FRANCE

[2] FAC SCI CASABLANCA 2,PHYS POLYMERES & LIQUIDES LAB,CASABLANCA,MOROCCO

来源：

MACROMOLECULES | 1992年 / 25卷 / 26期

关键词：

D O I：

10.1021/ma00052a018

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

We study the early kinetics of the microphase separation that occurs in cross-linked polymer blends. For strong gels, when the distance between cross-links is small, this is dominated by the Rouse modes. We find a characteristic growth rate OMEGA(q) dependence on temperature and wavenumber q for the unstable modes OMEGA(q) approximately q4(chi(s) - chi), where the Flory monomer-monomer interaction parameter chi is inversely proportional to temperature and chi(s) its value at spinodal. We discuss briefly the cross-over to the kinetics of phase separating blends as cross-linking density is decreased.

引用

页码：7188 / 7191

页数：4

共 15 条

[1]

[Anonymous], 1979, SCALING CONCEPTS POL

[2]

BETTACHY A, 1991, J PHYS I, V1, P153, DOI 10.1051/jp1:1991121

[3] PHASE-STABILITY OF WEAKLY CROSSLINKED INTERPENETRATING POLYMER NETWORKS [J].