高聚物玻璃化的不平衡性及流变行为

THE NON-EQUILIBRIUM GLASS TRANSITION OF POLYMERS AND ITS RELATED RHEOLOGICAL BEHAVIOR

高聚物在玻璃化转变前后表现出截然不同的力学、物理及流变特性,并在玻璃态下继续松弛。本文介绍了有关经典理论的形成和发展,最后从热力学、统计力学、动理学(kinetics)3方面联合考虑提出了3维空间(PVT/PST)数学表象,这是目前处理这方面问题较完善的理论。

Polymeric, glass, forming materials demonstrate , distinctly different physical, mechanical and rheological properties through glass transition and undergo continuous relaxation in glass state. The relevant classical theories are overviewed. A three dimensional mathematical representatipn (PVT/PST) by joint consideration of thermodynamics, statistical mechanics and kinetics is proposed, which proves most versatile in this area at present.