Conclusions
Poly-p-phenyleneterephthalamide fibres which have been subjected to drying at various temperatures have been studied by use of the “Biolar” polarizing interference microscope.
A significant change in the n⊥(r) curves on change in temperature has been detected. Temperature elevation essentially does not show up in the axial orientation of the polymer macromolecules; however, the transverse orientation of the structural elements changes considerably.
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Additional information
Translated from Khimicheskie Volokna, No. 3, pp. 40–41, May–June, 1989.
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Nekrasov, I.K., Korchenkova, G.K., Darvina, V.V. et al. Microinterferometry of poly-p-phenyleneterephthalamide fibres dried at various temperatures. Fibre Chem 21, 233–235 (1990). https://doi.org/10.1007/BF00549655
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DOI: https://doi.org/10.1007/BF00549655