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Investigation of axial density modulations of core fibrils by interface distribution functions

  • Polymer Science
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Abstract

The axial density modulation of core-fibrils in polypropylene and poly (1butene) crystallized from the oriented melt has been investigated by calculating interface distribution functions of the small angle x-ray scattering. The density modulation along the fiber axis originates from the migration of chain defects in the early stages of crystallization in the shear-field. The lengths of the needle crystals are approximately three times higher than those of the distorted zones. The values of the interface lengths between crystals and zones of lower electron density, are matching well with the lengths of the distorted zones. This result confirms the concept of defect clustering.

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Author notes

  1. H. -W. Fiedel, Th. Schöller & W. Wenig

    Present address: Laboratorium für Angewandte Physik, Universität - GH - Duisburg, Duisburg

  2. J. Petermann

    Present address: Arbeitsbereich Kunststoffverarbeitung, Technische Universität Hamburg-Harburg, Hamburg, F.R.G.

Authors and Affiliations

  1. Laboratorium für Angewandte Physik, Universität - GH - Duisburg, Duisburg

    J. Petermann

  2. Arbeitsbereich Kunststoffverarbeitung, Technische Universität Hamburg-Harburg, Hamburg, F.R.G.

    H. -W. Fiedel, Th. Schöller & W. Wenig

Authors
  1. H. -W. Fiedel
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  2. Th. Schöller
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  3. J. Petermann
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  4. W. Wenig
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Fiedel, H.W., Schöller, T., Petermann, J. et al. Investigation of axial density modulations of core fibrils by interface distribution functions. Colloid & Polymer Sci 264, 1017–1023 (1986). https://doi.org/10.1007/BF01410319

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  • DOI: https://doi.org/10.1007/BF01410319

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