CRYSTALLIZATION OF LINEAR FLEXIBLE CHAIN POLYMERS UNDER UNIAXIAL ORIENTATIONAL DEFORMATION CONDITIONS
Gasparyan Roland Abramovich, Gasparyan Oksana Rolandovna, Mashkov Yurii Aleksandrovich, Belyaev Valentin Mikhailovich
St. Petersburg State Polytechnical University
Abstract. The upgraded model of orientational crystallization for linear flexible chain polymers with high molecular weight is offered. In melt being located under uniaxial orientation restructuring that leads to the rectification of tubes with macromolecules and their axially directed fixation should occur. The analytical relations describing the final microfibrillar two-phase crystalline state of linear flexible chain polymer strongly oriented melt are obtained.
Key words and phrases: полимеры, гибкоцепные полимеры, плавление полимеров, фазовые переходы, кристаллизация, энтропия, polymers, flexible chain polymers, melting of polymers, phase transitions, crystallization, entropy
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