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Observation of twisting growth of branched polyethylene single crystals formed from the melt

By Liu JP, Zhang FJ and He TB


The twisting growth of a branched polyethylene single crystal formed from the melt was observed directly by means of transmission electron and atomic force miscroscopy. The surface stress asymmetry arising from the asymmetry of the surface-fold structure and, chain tilting resulted in the twisting growth of the single crystals. The handedness of the twisting lamellae was consistent With the chain-tilting direction. When multilayer lamellae piled up in a thicker film, the lamellar twist would be inevitably causing screw dislocations

Year: 2001
DOI identifier: 10.1002/1521-3927(20011101)22:16<1340::aid-marc1340>;2-9
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