Abstract
Poly(vinylidene fluoride)(PVDF) was irradiated in vacuum. Low dose γ-irradiation induced the increase in crystallinity in PVDF is studied by means of X-ray diffraction and scattering, differential scanning calorimetry (DSC), gel data and mechanical properties analysis. It is suggested that the low dose irradiation results in intermolecular crosslinking and main-chain scission. The latter creates shorter polymer chain and reduces the number of entanglements per molecule which, in turn, increase molecular mobility. The increase in mobility permits the molecules to form crystallites in the amorphous regions.
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