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Enhanced Templating in the Crystallisation of Poly(ε-caprolactone) Using 1,3:2,4-di(4-Chlorobenzylidene) Sorbitol

✍ Scribed by Supatra Wangsoub; Fred J. Davis; Geoffrey R. Mitchell; Robert H. Olley

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
385 KB
Volume
29
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

We show that small quantities of 1,3:2,4‐di(4‐chlorobenzylidene) sorbitol dispersed in poly(ε‐caprolactone) provide a very effective self‐assembling nanoscale framework which, with a flow field, yields extremely high levels of polymer crystal orientation. During modest shear flow of the polymer melt, the additive forms highly extended nano‐particles which adopt a preferred alignment with respect to the flow field. On cooling, polymer crystallisation is directed by these particles. This chloro substituted dibenzylidene sorbitol is considerably more effective at directing the crystal growth of poly(ε‐caprolactone) than the unsubstituted compound.

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