Electrically conductive pyrrole polymers and process of preparin

Details Electrically conductive pyrrole polymers and process of preparin Electrically conductive pyrrole polymers and process of preparin

1985-08-19

1986-12-16

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548520, 548521, 548522, 548519, 546275, C07D20730, C07D40112

Patent

active

046297987

ABSTRACT:
Organic polymers which are "hydroxyphenyl-substituted" and "ether-substituted" polypyrroles ("PP") linked through N-adjacent C atoms, are disclosed which are compactable, extrudable and are also electrical conductors. When such PPs are prepared by electrochemical deposition with an appropriate electrolyte, they are also soluble in commonly available solvents, provided at least one of the 3- or 4-positions of the pyrrole nucleus is substituted with a substituent having either a hydroxyphenyl, or an ether structure. By choice of the hydroxyphenyl and/or ether substituent on one of the substitutable positions (3- or 4-) of the pyrrole nucleus, or both, the PP may be tailored for use either as a semiconductor having a conductivity in the range from about 10.sup.-5 to about 10.sup.-2 S/cm, or a relatively good conductor having a conductivity in the range from about 10.sup.-2 to about 10.sup.2 S/cm.
A method is disclosed for preparing an ether-substituted pyrrole comprising reacting a non-Michael acceptor selected from the group consisting of esters, ketones and nitriles having vinylene carbon atoms, with tosylmethylisocyanide, in the presence of a solvent, so as to form a hydroxyphenyl-substituted or an ether-substituted pyrrole directly without substituting the pyrrole ring in the 2- and 5-positions.

REFERENCES:
Chemical Abstracts, vol. 20, 3455 (1926).
Chemical Abstracts, vol. 56, 15462h (1962).

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