Induced γ → α crystal transformation in blends of polyamide 6 and liquid crystalline copolyester

Jia Chong Ho, Kung-Hwa Wei

Research output: Contribution to journalArticlepeer-review

105 Scopus citations

Abstract

The equilibrium melting temperatures and the induced γ → α crystal transformation in blends of random liquid crystalline copoly(oxybenzoate-ethylene terephthalate) at molar ratio 60/40 (P64) and polyamide 6 (PA6) under different thermal treatments were investigated with differential scanning calorimetry and wide-angle X-ray diffraction, respectively. It was found that the equilibrium melting temperatures of P64/PA6 blends depended strongly on the amount of P64, and the presence of a small amount of P64 in PA6, around 5%, induced additional crystallization of the α-form crystal in the quenched PA6. Moreover, the onset temperature for the γ → α crystal transformation in the 5/95 P64/PA6 blend was reduced by 30°C as compared to that in the pure PA6 case (160°C vs 130°C).

Original languageEnglish
Pages (from-to)5181-5186
Number of pages6
JournalMacromolecules
Volume33
Issue number14
DOIs
StatePublished - 11 Jul 2000

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