Laser-Light Scattering from Ringed Spherulites in Poly(decamethylene terephthalate): Observation and Interpretation of Unusual “Ring-Scattering” Patterns

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Abstract

The morphology of crystallized poly(decamethylene terephthalate) samples was studied by optical microscopy and the small-angle light scattering method. Ringed spherulites exhibiting unusual Hv and Vv scattering patterns were observed and found to be formed at crystallization temperatures in the range from 0 to 80°C. The observed scattering patterns of ringed spherulites were analyzed and compared with the published results. It is proposed that the observed unusual scattering patterns may have resulted from light scattering from ringed spherulites with the optical axis making an angle of 45° to the spherulite radius.

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Keywords

  • Poly(decamethylene terephthalate)
  • Crystallization
  • Morphology
  • Ringed Spherulite
  • Light Scattering

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