Abstract
An attempt was made to improve the method (MKN method) for evaluating the fine structure of the amorphous region in a semi-crystalline polymer solid from the dynamic loss tangent (tanδ) vs. temperature (T) curve, originally proposed by the authors, taking into account the contribution of crystalline region acting in series against an external force. The volume fraction of the segments contributing to the αa dispersion, and the apparent activation energy for αa dispersion in addition to the tanδ vs. T curve are prerequisite to the new method (MK method). This method affords some structural parameters λ and φ defined in Takayanagi’s model with which the amorphous region works in parallel and in series against an external force, and the distribution function of a packing density of polymer molecules in an amorphous region.
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Manabe, Si., Kamide, K. A Further Study of the Quantitative Evaluation of the Fine Amorphous Structure Distribution of a Semi-Crystalline Polymer Solid from the Dynamic Loss Tangent (tanδ) vs. Temperature Curve. Polym J 16, 375–389 (1984). https://doi.org/10.1295/polymj.16.375
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DOI: https://doi.org/10.1295/polymj.16.375