PHASE TRANSITION OF ORIENTED POLY(VINYLIDENE FLUORIDE)FILMS UPON STRETCHING

Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (2): 115-116.

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PHASE TRANSITION OF ORIENTED POLY(VINYLIDENE FLUORIDE)FILMS UPON STRETCHING

Zhao Yong, Chen Ye, Yang Decai

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun

Received:1991-11-23 Revised:1992-11-09 Published:1993-04-10 Online:1993-04-10

Abstract

Abstract: Deformation process and phase transition of the oriented films of poly(vinylidene fluoride) (PVF₂) have been investigated by electron microscopy,electron diffraction and FTIR. The films prepared by a melt drawn technique contain highly oriented larnellae, which predominantly consist of a phase. During the course of stretching the fibrillar crystals are formed,accompanied by a α→β phase transition. Increasing deformation temperature is of no advantage to the α→β phase transition.

Key words: poly(vinylidene fluoride), morphology, crystal phase

Zhao Yong, Chen Ye, Yang Decai. PHASE TRANSITION OF ORIENTED POLY(VINYLIDENE FLUORIDE)FILMS UPON STRETCHING[J]. Chinese Journal of Applied Chemistry, 1993, 0(2): 115-116.

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PHASE TRANSITION OF ORIENTED POLY(VINYLIDENE FLUORIDE)FILMS UPON STRETCHING

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