Abstract

A microscopic study of isotactic polypropylene (PP) in active liquid media is presented. It was found that the character of structural transformations in the polymer undergoing deformation changes sharply depending on the thermal prehistory of the sample. The generation and development of crazes is changed by the diffusional permeation of the liquid into the bulk of the strained polymer. It is assumed that the observed effect is connected with the structural features of the polymer undergoing deformation.

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