Studies on the Crystallization of Poly(vinylidene chloride-co-vinyl chloride).

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  • Chen Chao-Lin
    Department of Chemical Engineering, National Kaohsiung University of Applied Sciences
  • Hsieh Tar-Hwa
    Department of Chemical Engineering, National Kaohsiung University of Applied Sciences
  • Ho Ko-Shan
    Department of Chemical Engineering, National Kaohsiung University of Applied Sciences

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Abstract

The degradation of Poly(vinylidene chloride-co-vinyl chloride) (VDC-VC copolymer) is found by the less order X-Ray diffraction patterns of annealed samples at 175°C. The degraded VDC-VC copolymer releases 1,3,5-trichlorobenzene, which behave as the nucleus of recrystallization during cooling and increase the crystallinity. The recrystallization behavior demonstrates that it is very sensitive to the degradation of VDC-VC copolymer. The degraded VDC-VC copolymer has an enhanced nucleation effect at lower temperature (90°C) resulting in higher crystallinity and rate of recrystallization regardless of better diffusion ability at higher temperatures. The polarized optical pictures reveal the growing of spherulites and the average size is about 2.9 mm.

Journal

  • Polymer Journal

    Polymer Journal 33 (11), 835-841, 2001

    The Society of Polymer Science, Japan

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