Solid polymeric electrolytes for electrochromic devices having r

Details Solid polymeric electrolytes for electrochromic devices having r Solid polymeric electrolytes for electrochromic devices having r

1992-04-23

1994-07-05

Arnold, Bruce Y.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

359269, 359265, 252586, G02F 1153, G02B 523

Patent

active

053272811

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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patent: 4312929 (1982-01-01), Randin
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patent: 4340278 (1982-07-01), Beni et al.
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patent: 4519930 (1985-05-01), Kakiuchi
patent: 4573768 (1986-03-01), Polak et al.
Jean-Paul Randin, "Ion-Containing Polymers as Semisolid Electrolytes in WO.sub.3 -Based Electrochromic Devices", J. Electrochem. Soc. 129, pp. 1215-1220 Jun. 1982.
R. D. Giglia and G. Haacke, "Performance Improvements in WO.sub.3 -Based Electrochromic Displays," Proc. SID, 23(1), pp. 41-45 (1982).

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