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Synthesis and properties of sulfonated polyurethane ionomers with anions in the polyether soft segments

✍ Scribed by Xin Wei; Xuehai Yu

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
181 KB
Volume
35
Category
Article
ISSN
0887-6266

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✦ Synopsis

SYNOPSIS

A series of polyether (PTMO, PEO) polyurethane ionomers having different contents of sodium sulfonate groups in the soft segments have been synthesized. The reaction of transesterification was involved in the incorporation of the sodium sulfonate groups in the polyether. The polyurethane ionomers were characterized by means of dynamic mechanical thermal analysis, differential scanning calorimetry, and small-angle x-ray scattering. Solid-state ionic conductivity was also measured. As the ionization level increased, the compatibility of the hard and soft segments increased and the glass transition region of the soft segment became broader. These samples had relatively higher moduli and good film-forming ability. Moreover, this kind of ionomer provides a very promising ionic conductive multiphase polymer with a single ion transport mechanism.

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