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Study of gamma-radiation induced lamellar damage mechanism of poly(vinylidene fluoride)

✍ Scribed by Zhao Zhudi; Luo Yunxia; Jiang Bingzheng; Yang Huai; Teng Fengen; Chen Xinfang

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
297 KB
Volume
41
Category
Article
ISSN
0969-806X

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✦ Synopsis

This paper studies y-radiation induced lamellar damage mechanism of poly(vinylidene fluoride), using wide angle X-ray diffraction (WAXD), differential scanning calorimetry (DSC), electronic paramagnetic resonance (EPR) and gel fraction determination. We believe that it is "lamellae core damage" rather than "lamellae surface damage" that results in the decrease of the crystallinity.

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An equilibrium study on the distribution
An equilibrium study on the distribution of structural defects between the lamellar and amorphous portions of poly(vinylidene fluoride) and (vinylidene fluoride-tetra fluoro ethylene) copolymer crystals
✍ Asok K. Dikshit; Arun K. Nandi πŸ“‚ Article πŸ“… 2000 πŸ› John Wiley and Sons 🌐 English βš– 262 KB πŸ‘ 2 views

Samples of poly(vinylidene fluoride) (PVF 2 ) and (vinylidene fluoride-tetra fluoroethylene) (VF 2 -VF 4 ) copolymer were etched with a chromium-based etching reagent. The etching rate was lower for the VF 2 -VF 4 copolymer samples than for the PVF 2 samples. The melting point and enthalpy of fusion