Premium
Conductivity, luminescence and vibrational studies of the poly(ethylene glycol) 400 electrolyte based on europium trichloride
Author(s) -
Di Noto Vito,
Bettinelli Marco,
Furlani Maurizio,
Lavina Sandra,
Vidali Maurizio
Publication year - 1996
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.1996.021970129
Subject(s) - ethylene glycol , electrolyte , luminescence , conductivity , raman spectroscopy , ionic conductivity , europium , peg ratio , molar conductivity , ionic bonding , chemistry , polymer chemistry , inorganic chemistry , ion , materials science , elemental analysis , organic chemistry , physics , optoelectronics , electrode , finance , economics , optics
Poly(ethylene glycol) 400/(EuCl 3 ) x electrolytic complexes with 0 ≤ x ≤ 0.327 were prepared. The ionic conductivity of these systems was investigated, and the data were satisfactorily well fitted by the empirical Vogel‐Tamman‐Fulcher equation. Two different conductivity regions depending on the electrolytic complexes compositions were observed. The conformation of the poly(ethylene glycol) 400 (PEG 400) in the complexes was investigated by FT‐IR and Raman spectroscopies. These investigations suggest that the PEG 400 chains in PEG 400/(EuCl 3 ) x , present a TGT conformation ( T = trans , G = gauche ). Moreover, by laser luminescence spectroscopy it was also proved that each Eu 3+ ion is coordinated by four oxygen atoms of PEG in a distorted C 2v site symmetry.