Solid polymeric electrolytes for electrochromic devices having reduced acidity and high anodic stability
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United States of America Patent
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Jul 5, 1994
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Apr 23, 1992
filing date -
Apr 23, 1992
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Abstract
Polymer electrolytes comprising co-polymers of vinylic, protonic acids and N,N' dialkyl substituted acrylamides and methacrylamides with high anodic stability, reduced acidity and high mechanical stiffness suitable for electrochromic devices, such as windows, mirrors and information displays. A preferred embodiment of the invention is a co-polymer with a composition of 30% 2-acrylamido-2-methyl propane sulfonic acid, 50% N,N dimethyl acrylamide and 20% water by weight.
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