Direct crystallization of extended- chain crystals of polyethylene from the melt at high pressure

PD CALVERT PD, DR UHLMANN DR

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

Samples have been crystallized both isothermally and in a temperature gradient. It is found that extended- chain crystals, once nucleated, can form directly and rapidly from the melt. Extended- chain crystals form directly from the melt at high pressure. It is suggested that at temperatures close to the extended chain crystals melting point, the primary nucleation of these crystals is slow but their growth is rapid. At lower temperatures, the growth of folded chain crystals is kinetically preferred. 10 refs.

Original languageEnglish (US)
Pages (from-to)165-172
Number of pages8
JournalJ Polym Sci Part B Polym Lett
Volume8
Issue number3
StatePublished - Jan 1 1970
Externally publishedYes

ASJC Scopus subject areas

  • Engineering(all)

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