Electrically conductive polymer gel and the method for manufactu

Details Electrically conductive polymer gel and the method for manufactu Electrically conductive polymer gel and the method for manufactu

1993-09-13

1995-06-06

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204403, 204418, 204421, 435817, 429192, 128639, 128640, 252518, 252521, 252512, 528317, 528319, 528499, 528503, G01N 2726

Patent

active

054219825

ABSTRACT:
An electrically conductive polymer gel is composed of a crosslinked polyacrylamide polymer including an electrolytic salt, water and a polyhydric alcohol uniformly dissolved therein, wherein the water and the polyhydric alcohol are major components of said polymer gel. The polyacrylamide series polymer in the gel has properties of being hydrophilic and being a nonelectrolyte. Therefore, a desirable connection between the gel and the electrode can be achieved with low impedance. Moreover, the polyhydric alcohol reduces the drying speed of the electrically conductive polymer gel, thereby preventing an increase in the impedance due to the dryout of the gel. Therefore, the electrically conductive polymer gel of the present invention permits an accurate measurement of an electrical phenomenon in an organism for long periods of time.

REFERENCES:
patent: 4333850 (1982-06-01), Krueger
patent: 4695354 (1987-09-01), Sugihara et al.
patent: 4786277 (1988-11-01), Powers et al.
patent: 5183879 (1993-02-01), Yuasa et al.
patent: 5290418 (1994-03-01), Menchen et al.
patent: 5314952 (1994-05-01), Choi et al.

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