Conductive polymer-maleimide blends and method of producing same

Details Conductive polymer-maleimide blends and method of producing same Conductive polymer-maleimide blends and method of producing same

1989-03-20

1991-01-08

Lieberman, Allan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

252500, 252511, 525540, C08L 1908, H01B 100

Patent

active

049836900

ABSTRACT:
Solution blending of (a) a conductive polymer containing carbon-nitrogen linkages, such as polyaniline, having an organic group or an inorganic group, e.g., derived from an anhydride or an aromatic multisulfonic acid, covalently linked to nitrogen atoms of the polymer and (b) a malemide, particularly a bismalemide, e.g., the bismaleimide prepared by reacting 1,3 bis (3 aminophenoxybenzene) with 2 units of maleic anhydride, or a bismaleimide terminated oligomer, in a suitable solvent. On removal of solvent and heating to cure the bismaleimide, a continuous phase blend of the conductive polymer and the bismaleimide is formed, having good electrical conductivity and strength. The solution blend can be applied as a coating on a substrate or can be processed to a powder which can be compressed into parts. The conductive blend can be melted and cured without the evolution of volatiles.

REFERENCES:
patent: 3766117 (1973-10-01), McQuade
patent: 4526706 (1985-07-01), Upson
patent: 4692225 (1987-09-01), Wituki et al.
patent: 4855361 (1989-07-01), Yaniger et al.
A. G. MacDiarmid et al., Mol. Cryst. Liq. Cryst., 121, 173 (1985).

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