A NUCLEAR-MAGNETIC-RESONANCE STUDY OF MOLECULAR ANISOTROPY IN STRAINED NETWORKS AND NETWORK BLENDS

被引：3

作者：

BRERETON, MG

机构：

[1] IRC in Polymer Science and Technology, University of Leeds, Leeds

来源：

MAKROMOLEKULARE CHEMIE-MACROMOLECULAR SYMPOSIA | 1993年 / 76卷

关键词：

D O I：

10.1002/masy.19930760135

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 splitting of the nuclear magnetic resonance line, seen in strained networks, is shown to originate from the anisotropic screening of the excluded volume interaction by density fluctuations. In a blend concentration fluctuations also contribute to the screening and are greatly enhanced if the phase separation point is approached. The effect on the line shape has been calculated and is shown to be sensitive to the thermodynamics of the phase separation.

引用

页码：249 / 256

页数：8

共 7 条

[1]

BRERETON MG, 1992, J PHYS I, V2, P581, DOI 10.1051/jp1:1992168

[2] SCREENING OF INTERACTIONS IN POLYMER BLENDS [J].