FAST DYNAMICS BELOW AND AROUND THE GLASS-TRANSITION IN A SIDEGROUP POLYMER (PVME)

被引：7

作者：

CHAHID, A

COLMENERO, J

ALEGRIA, A

机构：

[1] Departamento de Física de Materiales, Universidad del País Vasco, Facultad de Química, 20080 San Sebastián

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 1993年 / 201卷 / 1-3期

关键词：

D O I：

10.1016/0378-4371(93)90405-S

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have investigated the dynamics of a sidegroup polymer, poly(vinyl methyl ether) (PVME) in the time scale between 10(-11) s and 10(-13) s by means of time-of-flight quasi-elastic neutron scattering below and around the glass transition T(g). The quasi-elastic broadening of the spectra are interpreted in terms of a local motion of the methyl sidegroups and a model for this motion is presented. Additional scattering appears in the quasi-elastic range at T>T(g). Some preliminary results concerning the dynamics of this system above the glass transition are also reported.

引用

页码：101 / 105

页数：5