Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (9): 1326.

• Articles • Previous Articles     Next Articles

Studies on β Phase Crystallization of Poly (Vinyl idene Fluoride)

CHEN Ye1, YANG De-Cai1, SONG Dan-Dan2   

  1. 1. Polymer Phys.Lahor., Changchun Institute of Applied Chemistry of Acadmia Sinica, Changchun, 130022;
    2. Department of Material Science, Ftuian University, Shanghai, 200433
  • Received:1992-12-21 Revised:1993-04-03 Online:1993-09-24 Published:1993-09-24

Abstract: FTIRand TEMhave been used to study the effect of quenching, melt-drawing and blends component on β phase crystallization of PVF2.Low quenching temperature (30℃) induce β phase formation of PVF2 directly from the melt.The melt drawn films of PVF2 consist of highly oriented lamellar structure.Adding a given amount of polymethacrylates (PMAs), especially PMMA, into PVF2 results in formation of fibrillar crystals and β phase.The contents of fibrillar crystals and β phase increases with the increase of the molecular weight of PMAs.

Key words: Poly(vinylidene fluoride), Polymethacrylates, Quenching, Crystalline structure

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