Work

Polyaniline: a new concept in conducting polymers

Year: 1987

Type: article

Abstract: The analytically pure base form of polyaniline, , corresponding to the emeraldine oxidation state is converted from an insulator (σ 10−10S/cm) to a metal (σ 5 S/cm) by treatment with 1M aqueous HCl to form the corresponding salt, emeraldine hydrochloride, . This involves a new type of doping of a conducting polymer in that the number of electrons associated with the polymer undergoes no change during the protonic acid doping process. The metallic emeraldine hydrochloride is believed to be a delocalized poly(semiquinone radical cation) having a polaron conduction band, with most of the positive charge residing on the nitrogen atoms. It exhibits a finite density of states at the Fermi energy.

Source: Synthetic Metals

DOI: 10.1016/0379-6779(87)90893-9

Authors: A.G. Macdiarmid, J.C. Chiang, A.F. Richter, A.J. Epstein

Institutions: University of Pennsylvania, The Ohio State University

Language: English

Topic: Conducting polymers and applications

Subfield: Polymers and Plastics

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,390

OpenAlex ID: W2073618964

FWCI: 63.24

Cites: 8

Cited by: 1,439

Related to: 10