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Title: Use of luminescence of europium ions for the study of the interaction of polyelectrolyte hydrogels with multivalent cations

Abstract

Europium ions were used as fluorescent probes for examining the interaction of polyanionic hydrogels of chemically cross-linked poly(acrylic acid) and poly(methacrylic acid) with multivalent cations in aqueous medium. The fluorescence data indicate a strong and asymmetric binding of carboxylate groups to Eu{sup 3+} ions, leading to the expulsion of up to five water molecules from the solvation shell of the ion. The relaxation studies of the nonradiative energy transfer from europium to neodymium ions inside the gel revealed the formation of aggregates consisting of ca. seven rare earth ions (together with the corresponding countercharges of the network chains).

Authors:
; ; ;  [1]
  1. Moscow State Univ. (Russian Federation). Physics Dept.
Publication Date:
OSTI Identifier:
691298
Resource Type:
Journal Article
Journal Name:
Journal of Physical Chemistry B: Materials, Surfaces, Interfaces, amp Biophysical
Additional Journal Information:
Journal Volume: 103; Journal Issue: 36; Other Information: PBD: 9 Sep 1999
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; LUMINESCENCE; EUROPIUM; INTERACTIONS; GELS; CATIONS; VALENCE; ELECTROLYTES

Citation Formats

Smirnov, V.A., Sukhadolski, G.A., Philippova, O.E., and Khokhlov, A.R. Use of luminescence of europium ions for the study of the interaction of polyelectrolyte hydrogels with multivalent cations. United States: N. p., 1999. Web. doi:10.1021/jp9919821.
Smirnov, V.A., Sukhadolski, G.A., Philippova, O.E., & Khokhlov, A.R. Use of luminescence of europium ions for the study of the interaction of polyelectrolyte hydrogels with multivalent cations. United States. doi:10.1021/jp9919821.
Smirnov, V.A., Sukhadolski, G.A., Philippova, O.E., and Khokhlov, A.R. Thu . "Use of luminescence of europium ions for the study of the interaction of polyelectrolyte hydrogels with multivalent cations". United States. doi:10.1021/jp9919821.
@article{osti_691298,
title = {Use of luminescence of europium ions for the study of the interaction of polyelectrolyte hydrogels with multivalent cations},
author = {Smirnov, V.A. and Sukhadolski, G.A. and Philippova, O.E. and Khokhlov, A.R.},
abstractNote = {Europium ions were used as fluorescent probes for examining the interaction of polyanionic hydrogels of chemically cross-linked poly(acrylic acid) and poly(methacrylic acid) with multivalent cations in aqueous medium. The fluorescence data indicate a strong and asymmetric binding of carboxylate groups to Eu{sup 3+} ions, leading to the expulsion of up to five water molecules from the solvation shell of the ion. The relaxation studies of the nonradiative energy transfer from europium to neodymium ions inside the gel revealed the formation of aggregates consisting of ca. seven rare earth ions (together with the corresponding countercharges of the network chains).},
doi = {10.1021/jp9919821},
journal = {Journal of Physical Chemistry B: Materials, Surfaces, Interfaces, amp Biophysical},
number = 36,
volume = 103,
place = {United States},
year = {1999},
month = {9}
}