Low Temperature Annealing in Low Density Polyethylene. SAXS and DSC Studies.

DOI 1 Citations 27 References
  • MOYSÉS Sílvio CALAFATI
    Department de Física, Universidade Federal do Paraná, Caixa Postal 19081, 81531-990 Curitiba (PR), Brazil

Description

On the bases of small-angle X-ray scattering (SAXS) and differential scanning calorimetry (DSC) techniques it is possible to show that low density polyethylene (LDPE) annealed at 40°C divides its original crystal population into two: the first one melts at the annealing temperature, recrystallize and continuously thicken to improve its stability. The fraction that does not melt at 40°C is unable to increase its lamellar thickness, although it shows crystal lateral growth. Finally, an interesting phenomenon was detected through the SAXS analysis: a transition of polymer segments from the interphase towards to the amorphous phase. This process occurs inside the stacks of the original crystals which remain unmelted at 40°C.

Journal

  • Polymer Journal

    Polymer Journal 32 (6), 486-491, 2000

    The Society of Polymer Science, Japan

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Keywords

Details 詳細情報について

  • CRID
    1390001206290450816
  • NII Article ID
    130004430200
  • DOI
    10.1295/polymj.32.486
  • COI
    1:CAS:528:DC%2BD3cXktlWms7o%3D
  • ISSN
    13490540
    00323896
  • Text Lang
    en
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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