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Influence of molecular weight on the crystallization of poly(vinylidene fluoride)

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Abstract

Five samples of Poly (vinylidene fluoride) with a molecular weight from 45,000 to 260,000 were analyzed by means of FT-IR spectroscopy in order to study the influence of molecular weight\(\left( {\bar Mv} \right)\) on the crystallization process. The spectra of films obtained from methylethylketone solutions revealed the prevalence of form II (α) in the case of lower\(\bar Mv\) and of form III (γ) in the higher molecular weight samples. The amount of form III was found to increase as the Mv decreased and as annealing temperatures increased. The deconvolution technique of vibrational spectra allowed detection of small amounts of other forms accompanying the prevailing one.

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Benedetti, E., D'Alessio, A., Bertolutti, C. et al. Influence of molecular weight on the crystallization of poly(vinylidene fluoride). Polymer Bulletin 22, 645–651 (1989). https://doi.org/10.1007/BF00718947

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  • DOI: https://doi.org/10.1007/BF00718947

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