Polymer electrolyte having acidic, basic and elastomeric subunits
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United States of America Patent
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May 30, 2006
Grant Date -
Sep 12, 2002
app pub date -
Jun 1, 2001
filing date -
Jun 2, 2000
priority date (Note) -
Expired
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Abstract
The invention includes compositions comprising at least first and second polymers and optionally a third polymer wherein acid subunits, basic subunits and elastomeric subunits are contained in the polymers. In one aspect, the composition comprises a ternary polymer blend comprising an acidic polymer comprising acidic subunits, a basic polymer comprising basic subunits and an elastomeric polymer comprising elastomeric subunits. In an alternate aspect, the composition comprises a binary polymer blend which comprises acidic or basic subunits in one polymer and a copolymer comprising the other of the acidic or basic subunit and an elastomeric subunit. Such polymer compositions may be formed into a membrane having electrochemical properties which permit the use of such a membrane in an electrochemical device.
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