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Poly(vinylidene fluoride)/poly(ethylene-co-vinyl acetate) (20/80) blend. I. Miscibility and crystallization behavior

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Abstract

The miscibility and crystallization behavior of the blends of poly(vinylidene fluoride) (PVDF) and ethylene/vinyl acetate(20/80) copolymer (EVAc80) have been studied using a differential scanning calorimeter and a polarizing microscope equipped with a heating stage. From the melting point depression, the values of interaction energy densityB were calculated to be −1.3004 (cal/cm3) and the Flory-Huggins interaction parameterχ 12 was found to be −0.0818 at 445.6 K. With increasing concentration of EVAc80, the radial growth rate of spherulite was reduced drastically. The FT-IR analysis of samples quenched from the melt to various temperatures showed increasing content ofβ-phase with increasing amount of blended EVA80 along with lower quenching temperature.

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Authors and Affiliations

  1. Department of Advanced Polymer and Fiber Materials, College of Environment and Applied Chemistry, Kyung Hee University, 449-701, Gyeonggi-do, Korea

    Jong Soon Lee & Kap Jin Kim

  2. Material Analysis Team, Central Research Institute, Hyosung Corporation, 431-080, Gyeonggi-do, Korea

    Jong Soon Lee

Authors
  1. Jong Soon Lee
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  2. Kap Jin Kim
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Correspondence to Kap Jin Kim.

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Lee, J.S., Kim, K.J. Poly(vinylidene fluoride)/poly(ethylene-co-vinyl acetate) (20/80) blend. I. Miscibility and crystallization behavior. Fibers Polym 8, 237–242 (2007). https://doi.org/10.1007/BF02877264

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  • DOI: https://doi.org/10.1007/BF02877264

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