Mössbauer spectroscopic study of sulphonated poly(ether-urethane) linear ionomer doped with iron species

A. A. Kamnev, O. P. Grigoryeva, E. Kuzmann, A. Vértes

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Thermoplastic linear poly(ether-urethane) sulphonated ionomer (PEUSI), doped with natural Fe2∈+∈, was studied by Mössbauer spectroscopy at T∈=∈78 and 290 K in order to monitor the chemical state of Fe species. The Fe2∈+∈ added was found to get only partly oxidised in the course of preparation of a dry polymer film from aqueous suspension. The oxidised part gave a ferric quadrupole doublet (over half of total Fe added) and, at T∈=∈78 K only, a small portion of magnetically split sextet (ca. 3%), whereas FeII (total over 40%) stabilised in two different forms (represented by quadrupole doublets) corresponding to two types of iron(II) microenvironments, where FeII could be coordinated involving -CONH- and -NHNH- moieties and sulphonate groups in PEUSI. The results obtained show that Fe2∈+∈-doping of PEUSI-based materials may be used for probing their structural characteristics by Mössbauer spectroscopy.

Original languageEnglish
Pages (from-to)95-100
Number of pages6
JournalHyperfine Interactions
Volume190
Issue number1-3
DOIs
Publication statusPublished - Apr 1 2009

Keywords

  • Fe Mössbauer spectroscopy
  • Iron(II)-doped sulfonated poly(ether-urethane)
  • Thermoplastic linear ionomer

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Mössbauer spectroscopic study of sulphonated poly(ether-urethane) linear ionomer doped with iron species'. Together they form a unique fingerprint.

  • Cite this