Conductivity and microwave dielectric response of polyaniline and poly(o-toluidine) fibers

Y. Z. Wang; J. Joo; C. H. Hsu; A. J. Epstein

doi:10.1016/0379-6779(94)02444-4

Conductivity and microwave dielectric response of polyaniline and poly(o-toluidine) fibers

Y. Z. Wang, J. Joo, C. H. Hsu, A. J. Epstein

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

We compare the results of temperature-dependent de conductivity σ_dc(T) and microwave dielectric constant ε{lunate}_mw(T) for CSA doped polyaniline (PAN-CSA) and poly(o-toluidine) (POT-CSA) fibers prepared in m-cresol, HCl doped 4-fold stretched polyaniline EB fiber (PAN-HCl(4X)), and HCl doped poly(o-toluidine) (POT-HCl) fibers (unstretched and 3-fold stretched). Although POT-HCl fibers show similar σ_dc(T) as earlier studied POT-HCl powder, POT-CSA fiber shows significantly higher σ_dc(T) with much weaker temperature dependence and much larger ε{lunate}_mw(T), indicating that it is much closer to the localization-delocalization boundary. PAN-HCl(4X) fiber and PAN-CSA fiber have almost identical dc conductivity at room temperature, however PAN-HCl(4X) fiber shows stronger temperature of σ_dc and a very large positive ε{lunate}_mw, as opposed to have huge negative ε{lunate}_mw observed in the PAN-CSA fiber.

Original language	English
Pages (from-to)	267-268
Number of pages	2
Journal	Synthetic Metals
Volume	69
Issue number	1-3
DOIs	https://doi.org/10.1016/0379-6779(94)02444-4
Publication status	Published - 1995 Mar 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/0379-6779(94)02444-4

Cite this

@article{a150c2cec60247388c585b94a393d41e,

title = "Conductivity and microwave dielectric response of polyaniline and poly(o-toluidine) fibers",

abstract = "We compare the results of temperature-dependent de conductivity σdc(T) and microwave dielectric constant ε{lunate}mw(T) for CSA doped polyaniline (PAN-CSA) and poly(o-toluidine) (POT-CSA) fibers prepared in m-cresol, HCl doped 4-fold stretched polyaniline EB fiber (PAN-HCl(4X)), and HCl doped poly(o-toluidine) (POT-HCl) fibers (unstretched and 3-fold stretched). Although POT-HCl fibers show similar σdc(T) as earlier studied POT-HCl powder, POT-CSA fiber shows significantly higher σdc(T) with much weaker temperature dependence and much larger ε{lunate}mw(T), indicating that it is much closer to the localization-delocalization boundary. PAN-HCl(4X) fiber and PAN-CSA fiber have almost identical dc conductivity at room temperature, however PAN-HCl(4X) fiber shows stronger temperature of σdc and a very large positive ε{lunate}mw, as opposed to have huge negative ε{lunate}mw observed in the PAN-CSA fiber.",

author = "Wang, {Y. Z.} and J. Joo and Hsu, {C. H.} and Epstein, {A. J.}",

note = "Funding Information: This work is supported in part by the Office of Naval Research and The Ohio State University Center for Materials Research. We appreciate discussions with J. P. Pouget.",

year = "1995",

month = mar,

day = "1",

doi = "10.1016/0379-6779(94)02444-4",

language = "English",

volume = "69",

pages = "267--268",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

number = "1-3",

}

TY - JOUR

T1 - Conductivity and microwave dielectric response of polyaniline and poly(o-toluidine) fibers

AU - Wang, Y. Z.

AU - Joo, J.

AU - Hsu, C. H.

AU - Epstein, A. J.

N1 - Funding Information: This work is supported in part by the Office of Naval Research and The Ohio State University Center for Materials Research. We appreciate discussions with J. P. Pouget.

PY - 1995/3/1

Y1 - 1995/3/1

N2 - We compare the results of temperature-dependent de conductivity σdc(T) and microwave dielectric constant ε{lunate}mw(T) for CSA doped polyaniline (PAN-CSA) and poly(o-toluidine) (POT-CSA) fibers prepared in m-cresol, HCl doped 4-fold stretched polyaniline EB fiber (PAN-HCl(4X)), and HCl doped poly(o-toluidine) (POT-HCl) fibers (unstretched and 3-fold stretched). Although POT-HCl fibers show similar σdc(T) as earlier studied POT-HCl powder, POT-CSA fiber shows significantly higher σdc(T) with much weaker temperature dependence and much larger ε{lunate}mw(T), indicating that it is much closer to the localization-delocalization boundary. PAN-HCl(4X) fiber and PAN-CSA fiber have almost identical dc conductivity at room temperature, however PAN-HCl(4X) fiber shows stronger temperature of σdc and a very large positive ε{lunate}mw, as opposed to have huge negative ε{lunate}mw observed in the PAN-CSA fiber.

AB - We compare the results of temperature-dependent de conductivity σdc(T) and microwave dielectric constant ε{lunate}mw(T) for CSA doped polyaniline (PAN-CSA) and poly(o-toluidine) (POT-CSA) fibers prepared in m-cresol, HCl doped 4-fold stretched polyaniline EB fiber (PAN-HCl(4X)), and HCl doped poly(o-toluidine) (POT-HCl) fibers (unstretched and 3-fold stretched). Although POT-HCl fibers show similar σdc(T) as earlier studied POT-HCl powder, POT-CSA fiber shows significantly higher σdc(T) with much weaker temperature dependence and much larger ε{lunate}mw(T), indicating that it is much closer to the localization-delocalization boundary. PAN-HCl(4X) fiber and PAN-CSA fiber have almost identical dc conductivity at room temperature, however PAN-HCl(4X) fiber shows stronger temperature of σdc and a very large positive ε{lunate}mw, as opposed to have huge negative ε{lunate}mw observed in the PAN-CSA fiber.

UR - http://www.scopus.com/inward/record.url?scp=0029274044&partnerID=8YFLogxK

U2 - 10.1016/0379-6779(94)02444-4

DO - 10.1016/0379-6779(94)02444-4

M3 - Article

AN - SCOPUS:0029274044

SN - 0379-6779

VL - 69

SP - 267

EP - 268

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Conductivity and microwave dielectric response of polyaniline and poly(o-toluidine) fibers

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this