An overview of the nonequilibrium behavior of polymer glasses
An overview of the nonequilibrium behavior of polymer glasses
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聚合物玻璃的非平衡行为概述
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
G. Wilkes
中科院分区：
文献类型：
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作者：
M. R. Tant;G. Wilkes
它指出，研究工作目前正针对两个领域，一个包括实验研究这种现象在各种玻璃态聚合物系统和其他涉及的定量理论的发展，能够令人满意地预测各种聚合物材料在不同条件下的老化行为。最近在这两个领域的工作进行了调查。概述了非平衡行为的基本原理，重点放在材料性能的变化与退火低于玻璃化转变温度。讨论了自由体积理论和热力学理论。
It is pointed out that research efforts are at present being directed in two areas, one comprising experimental studies of this phenomenon in various glassy polymer systems and the other involving the development of a quantitative theory capable of satisfactorily predicting aging behavior for a variety of polymer materials under different conditions. Recent work in both these areas is surveyed. The basic principles of nonequilibrium behavior are outlined, with emphasis placed on changes in material properties with annealing below the glass transition temperature. Free volume theory and thermodynamic theory are discussed.