Summary
An expression is presented which relates the experimentally observed melting point depression in crystallizable, compatible polymer blends to changes in lamellar thickness and thermodynamic considerations.
Considering a given crystallization temperature, this relationship suggests that one should observe a depressed blend melting point, despite an increase in lamellar thickness over the pure crystallizable material.
Possible explanations for the melting point elevation observed in some compatible blends are discussed.
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Runt, J., Rim, P.B. & Howe, S.E. Melting point elevation in compatible polymer blends. Polymer Bulletin 11, 517–521 (1984). https://doi.org/10.1007/BF01045330
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DOI: https://doi.org/10.1007/BF01045330