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Science 12 March 1965:
Vol. 147. no. 3663, pp. 1296 - 1297
DOI: 10.1126/science.147.3663.1296
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Articles

Dislocation Networks in Folded-Chain Polyethylene Crystals

V. F. Holland 1 and P. H. Lindenmeyer 1

1 Chemstrand Research Center, Inc., Durham, North Carolina

Interaction between the fold surfaces of polymer crystals can be strong enough to concentrate any mismatch in orientation into a network of dislocations. Direct observation of these networks by diffraction contrast electron microscopy yields strong evidence in favor of polymer crystallization by a regular chain-folding mechanism.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)