QENS investigation of the segmental dynamics of a PVME/dPS miscible polymer blend

被引：5

作者：

Alegria, A ^{[1
]}

Cendoya, I ^{[1
]}

Colmenero, J ^{[1
]}

Alberdi, JM ^{[1
]}

Frick, B ^{[1
]}

机构：

[1] INST MAX VON LAUE PAUL LANGEVIN, F-38042 GRENOBLE, FRANCE

来源：

PHYSICA B-CONDENSED MATTER | 1997年 / 234卷

关键词：

glass transitions; relaxation phenomena; polymers; quasielastic scattering; alloys;

D O I：

10.1016/S0921-4526(97)89260-5

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

By means of the backscattering IN10 spectrometer at the ILL (Grenoble), we have investigated the segmental dynamics of poly(vinyl methyl ether) (PVME) in a blend containing 65 wt% PVME and 35 wt%d-polystyrene. The quasielastic broadening of the spectra is apparent at T > 350 K and shows a strung dependence on the momentum transfer. The data are analyzed in the framework of the approaches commonly used to describe the blend dynamics in the macroscopic range. The results of this analysis are compared with the ones obtained by means of nuclear magnetic resonance and dielectric measurements.

引用

页码：442 / 444

页数：3

共 6 条

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[6] DIELECTRIC STUDIES OF THE ALPHA-RELAXATION IN MISCIBLE POLYMER BLENDS AND ITS RELATION TO CONCENTRATION FLUCTUATIONS
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