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Keywords:

  • FT-IR;
  • host-guest systems;
  • polystyrene;
  • selectivity;
  • syndiotactic

Abstract

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Concentration changes in a δ-form film during sorption processes: sorption of a chloroform(D)/decane(H) mixture (1:1 molar ratio).

Summary: Selective absorption uptake during the guest-exchange processes in the δ form of syndiotactic polystyrene (sPS) was confirmed by IR spectroscopy. When films of the δ form were immersed in hexane/decane or chloroform/decane mixtures, decane molecules were incorporated preferentially in the δ form. Sorbate uptake by the δ form was greatly accelerated when the sorbate was mixed with a solvent penetrable to the amorphous region of sPS.