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  • 1 National Academy of Chemical Technology F. Engels 7 153 460 Ivanovo Russia
  • | 2 Institute of Non-aqueous Solutions Chemistry of RAS Akademicheskaya 1 153 045 Ivanovo Russia
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The example of polyethylene of low density (PELD) crystallization in ethylbenzene and some other alkylbenzenes presence demonstrates the unsufficiency of formal liquidus curve knowledge for the description of phase equilibrium in amorphous-crystalline polymer-liquid system. Experimental data affirming polymorphous structure of PELD crystalline phase and influence of the solvent on the order of various regular structures formation in it are being reported.