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The application of quaternary ammonium ionic polymers to electroanalysis: Part 1. quaternary ammonium ionic polymer membranes for solid‐state, ion‐selective electrodes
Author(s) -
Rocheleau MarieJosée,
Purdy William C.
Publication year - 1991
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.1140030909
Subject(s) - membrane , thiocyanate , ammonium , electrode , ammonium thiocyanate , selectivity , polymer , ionic bonding , inorganic chemistry , ion selective electrode , ionic liquid , materials science , chemistry , polymer chemistry , ion , organic chemistry , catalysis , biochemistry
The preparation, properties, and response characteristics of polymeric ion‐selective membrane electrodes prepared from poly(vinylbenzyl chloride) functionalized with quaternary ammonium groups are described. Notably, a carbon‐support electrode coated with a film of poly(trihexylvinylbenzylammonium thiocyanate) yielded a highly selective Nernstian response to thiocyanate in the concentration range 5 × 10 −5 −0.1 M. The selectivity of this membrane electrode can be favorably compared with that of conventional thiocyanate ion‐selective electrodes. The use of functionalized polymer membranes with solid‐support electrodes represents an interesting alternative to conventional polymeric membranes.