Discontinuous deformation and morphology of polymers

被引：5
|
作者：
Peschanskaya, NN [1 ]
Yakushev, PN
Egorov, VM
Bershtein, VA
Bokobza, L
机构：
[1] Russian Acad Sci, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia
[2] Lab PCSM, F-75231 Paris 05, France
来源：
PHYSICS OF THE SOLID STATE | 2002年 / 44卷 / 09期
关键词：
Polymer; Spectroscopy; Quartz; SiO2; State Physics;
D O I：
10.1134/1.1507248
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The morphological nature of discontinuous (jumplike) deformation is studied. Recording creep behavior of materials using a laser interferometer permits one to determine the parameters of deformation jumps on a micron scale. The objects of investigation were poly(dimethylsiloxane) (PDMS) and a composite material consisting of PDMS and quartz (SiO2). It is shown that the height and sharpness of jumps depend on the composition of the material and the stage of deformation. An analysis of differential scanning calorimetry (DSC) curves of the materials in the deformed and initial states suggests that deformation results in ordered domains in rubberlike polymers. This confirms the assumption that deformation jumps reflect the presence and the evolution of structural inhomogeneities in amorphous polymers. (C) 2002 MAIK "Nauka/Interperiodica".
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收藏
页码：1684 / 1688
页数：5
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