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Zum Mechanismus der Polymerkristallisation

G. R. Strobl, T. Engelke, H. Meier, G. Urban. Coll. Polym. Sci. 260, 394-403 (1982)

Abstract

The results of small angle X-ray scattering experiments and electron microscopic investigations on branched polyethylene suggest a new model of partial crystallization and melting. The formation of lamellar structures is described as a consecutive process (ldquoinsertion crystallizationrdquo) controlled by the concentration of non-crystallizable units in the amorphous layers. Crystallization kinetics upon stepwise cooling is investigated by dilatometry. Comparison of low angle X-ray scattering and Raman spectroscopic results provides evidence for a accumulation of comonomer units at the lamellar surfaces.

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