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Plasticized single conductung polyelectrolytes based on poly (AMPS)

journal contribution
posted on 01.01.1996, 00:00 authored by H Every, Maria ForsythMaria Forsyth, D MacFarlane
Poly(2-acrylamido-2-methyl-propane-1-sulphonic acid), poly(AMPS), has been ion exchanged with lithium and sodium to form alkali metal ion conducting polyelectrolytes. In the pure form these materials are rigid and would thus show limited conductivity. However addition of water or dimethylsulphoxide, as plasticizers, increases the conductivity by several orders or magnitude. The thermal analysis and NMR relaxation studies of these systems suggest that the increase in conductivity is as a direct result of increased ion mobility although the FTIR evidence still suggests significant ion association consistent with weak electrolytes. Although the Tg's of the sodium form of the polymer were higher, this system displayed higher conductivities than lithium which can be explained by a greater degree of ion dissociation and hence a larger number of charge carriers in the case of sodium poly(AMPS).

History

Journal

Ionics

Volume

2

Issue

1

Pagination

53 - 62

Publisher

Springer

Location

[Berlin, Germany]

ISSN

0947-7047

eISSN

1862-0760

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

1996, Springer