Abstract
A study of the stretching of glasslike polyethylene terephtha late (PETP)_in an adsorption-active medium has been made in the light of Griffiths-Rebinder theory. It is shown on the basis of theoretical considerations that the number of incipient microcracks is a complex function of the thickness of the PETP sample and the rate of stretching. An equation was derived and experimental verification of the latter showed good agreement between theory and experiment. The data obtained were used to characterize the distribution of microheterogeneities in a real polymer, where this distribution determines the process of inelastic deformation of the polymer. A quantitative analysis of the character of PETP crazing during deformation in an adsorption-active medium showed satisfactory agreement between theory and experiment.
Published Version
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