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Electroactive polymers

  • US 4,519,938 A
  • Filed: 11/17/1982
  • Issued: 05/28/1985
  • Est. Priority Date: 11/17/1982
  • Status: Expired due to Fees
First Claim
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1. A tractable electroactive polymer comprising:

  • a linear charged polymer backbone and a sufficient concentration of charge compensating ionic dopant(s) associated therewith, wherein said linear polymer backbone is capable of undergoing reversible oxidation or reversible reduction or both to form said linear charged polymer backbone, said linear polymer backbone comprises diradical repeat units selected from the group consisting of a heterocyclic ring system including at least one Group 5B or Group 6B atom, wherein none of the ring carbon atoms is saturated, a heterocyclic ring system including at least one Group 5B or Group 6B atom wherein none of the ring carbon atoms is saturated and a connecting unit, and mixtures thereof, wherein said diradical repeat unit contains no exocyclic double bonds and said diradical unit in the form of a monomeric repeat unit is capable of undergoing reversible oxidation or reversible reduction or both to form a stable ionic species, wherein said ionic species is a charged atomic or molecular species in the condensed phase which maintains said ionic species chemical integrity throughout the course of the chemical process of undergoing reversible oxidation or reversible reduction or both, and wherein said connecting unit is a conjugated system or atom or group of atoms which maintain π

    orbital overlap with the heterocyclic ring system without adversely affecting the reversible oxidation or reversible reduction or both of said linear polymer backbone, said connecting unit is selected from the group consisting of;

    ##STR36## and atoms, groups of atoms and conjugated molecules which maintain π

    orbital overlap with said heterocyclic ring system wherein Rv, Rvi and Rvii are H or methyl and mixtures thereof and Rviii is lower alkyl C1 -C4, or P-substituted phenyl, Ar is phenylene, or biphenylene, with the proviso that the heterocyclic ring system excludes fused 5,6-membered heterocyclic ring systems wherein two heteroatoms are in the 5-membered ring.

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