Effect of the Molecular Mobility of Epoxy Amine Crosslinked Polymers on Their Relaxation and Physicomechanical Characteristics

被引：2
|
作者：
Smirnov, Yu. N. [1 ]
Glavina, T. A. [1 ]
Efremova, A. I. [1 ]
机构：
[1] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Moscow Oblast, Russia
来源：
POLYMER SCIENCE SERIES A | 2011年 / 53卷 / 01期
关键词：
LINKING DENSITY; PARTICLES;
D O I：
10.1134/S0965545X1101007X
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 results on molecular mobility in epoxy amine crosslinked polymers at segmental (alpha process) and local (beta process) levels are analyzed. The effect of intrachain and interchain rigidities on the above processes is considered, where the intrachain rigidity is measured with the use of flexibilizing agents and the interchain rigidity is dependent on the intermolecular-interaction intensity, which is governed by the introduction of plasticizing agents. Both modes of molecular mobility in the crosslinked polymers show a cooperative character that controls the dissipation energy of the corresponding relaxation process. The correlation between the above processes and the elastic, strength, and relaxation characteristics of the epoxy amine crosslinked polymers is studied. Molecular mobility is shown to exert an inverse effect on the relaxation and dissipative characteristics of the network polymers.
引用
收藏
页码：30 / 36
页数：7
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