Abstract
Thermoplastic linear ionomer based on sulphonated poly(ether-urethane)—styrene-acrylate copolymer, doped with natural Fe2 + , was studied by Mossbauer spectroscopy at T = 78 and 290 K to monitor the chemical state of Fe species. The Fe2 + added to aqueous suspension of the system was only partly oxidised in the course of polymer film preparation and drying in air. The oxidised part comprised a magnetic phase (~19 % of total Fe both at T = 78 and 298 K) and a quadrupole doublet (~40 %), while FeII (over 40 %) stabilised in two types of microenvironments.
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