Abstract
There is occasionally observed in some crystalline polymeric films a complex light-scattering pattern which simultaneously exhibits spherulitic scattering at small scattering angles and rod-like scattering at high scattering angles. The complex patterns which have been observed for films of poly(tetrafluoroethylene), poly(chlorotrifluoroethylene), polypropylene—polyethylene A—B-type block copolymer, and poly(ethylene oxide)—polyisoprene A—B and A—B—A block copolymers are analyzed in terms of spherulites having internal disorder with respect to the optic-axis twist-angle η. The shape of the rod-like scattering is shown to depend upon the disorder and the orientation angle χ of the optic axis with respect to spherulite radii and to be associated with fine structure of the spherulites.
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Hashimoto, T., Murakami, Y., Okamori, Y. et al. Origin of a Complex Light-Scattering Pattern from Some Crystalline Polymer Films. Polym J 6, 554–563 (1974). https://doi.org/10.1295/polymj.6.554
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DOI: https://doi.org/10.1295/polymj.6.554