PHASE-SEPARATION AND GLASS-TRANSITION INTERVENTION IN A POLYMER BLEND

被引：27
|
作者：
MEIER, G [1 ]
VLSSOPOULOS, D [1 ]
FYTAS, G [1 ]
机构：
[1] MAX PLANCK INST POLYMER RES,D-55021 MAINZ,GERMANY
来源：
EUROPHYSICS LETTERS | 1995年 / 30卷 / 06期
关键词：
D O I：
10.1209/0295-5075/30/6/002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on a dynamic-light-scattering study of the order parameter fluctuations in a binary mixture of poly(methylphenylsiloxane) and poly(styrene) in the glass transition region. We find that the interdiffusion freezes and the growth of composition fluctuations ceases when the time scales of the segmental motion in the poly(styrene)-rich environment approach the duration of the experiment. In contrast to the single relaxation process found in polymer blends well above T-g, the polymer mixture studied here exhibits an additional slower relaxation mode.
引用
收藏
页码：325 / 330
页数：6
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