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Solution temperatures in xylene and n-octadecane of polyethylene single-crystal aggregates were measured by differential scanning calorimetry. Crystals were irradiated to suppress morphological changes during the heating process. The measurements, as a function of reciprocal lamellar thickness, yield values for the equilibrium dissolution temperatures Td0 and end surface free energy σe of Td0=113.7±1.2°C and σe=93±8 erg/cm2 for dissolution in xylene, and Td0=129.4±1.6°C and σe=92±10 erg/cm2 for dissolution in octadecane.
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Huseby et al. (1968) studied this question.
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