Abstract
A phase diagram of the high-density polyethylene (HDPE)-m-xylene system has been plotted and discussed in the context of the concept according to which semicrystalline polymers are three-dimensionally structured liquids with thermotropic grid nodes in the form of crystallites from the thermodynamic point of view. It has been shown that the specific feature of the semicrystalline-polymer-good-solvent systems is the change in the number of phases in them that is exclusively due to the reversible process of dissolution of the low-molecular-mass component in the amorphous regions of the polymer. It has been proposed that the coordinates of the imaging point that corresponds to the minimum temperature of the complete amorphization of the polymer in the presence of the liquid in the phase diagram of these systems can be used as a characteristic for the level of the thermodynamic affinity of the semicrystalline polymer and the liquid.
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Original Russian Text © L.N. Mizerovskii, T.N. Lebedeva, K.V. Pochivalov, 2015, published in Vysokomolekulyarnye Soedineniya. Ser. A, 2015, Vol. 57, No. 3, pp. 199–202.
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Mizerovskii, L.N., Lebedeva, T.N. & Pochivalov, K.V. The phase diagram of the high-density polyethylene-m-xylene system. Polym. Sci. Ser. A 57, 257–260 (2015). https://doi.org/10.1134/S0965545X15030086
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DOI: https://doi.org/10.1134/S0965545X15030086