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Tensile Yield‐stress Behavior Of Glassy Polymers

C. Bauwens-Crowet, J. Bauwens, G. Homes
Published 1969 · Materials Science

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It is shown that, at the yield stress, glassy polymers exhibit viscous flow which is in agreement with the generalized theory of Eyring. The study of the yield stress over a wide range of temperatures and strain rates provides evidence on the secondary transitions found by other methods. From our measurements we conclude that every secondary transition corresponds to the liberation of one of the degrees of freedom of a segment of the main chain.

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