Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 1,431

The DOI matches its Crossref record.

Polyaniline: a new concept in conducting polymers

Open access
Macdiarmid, A.G., Chiang, J.C., Richter, A.F., Epstein, A.J.·1987·Synthetic Metals

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.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/0379-6779(87)90893-9

Cites

Statistics

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cited by

See all 1,431

Metadata

Authors
Macdiarmid, A. G., Chiang, J. C., Richter, A. F., & Epstein, A. J.
Venue
Synthetic Metals
Publisher
Elsevier BV
Published
1987-02
Volume
18
Issue
1-3
Pages
285-290
ISSN
0379-6779 (ISSN-L)
OpenAlex
W2073618964
Cited by
1,431
References
0
FWCI
57.57
Type
journal article
Language
en
Open access
hybrid

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Polyaniline: a new concept in conducting polymers. https://app.cochat.ai/papers/10.1016/0379-6779(87)90893-9
The paper
Macdiarmid, A. G., Chiang, J. C., Richter, A. F., & Epstein, A. J. (1987). Polyaniline: a new concept in conducting polymers. Synthetic Metals. https://doi.org/10.1016/0379-6779(87)90893-9

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.