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

^*Corresponding author for this work

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

18 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

Bibliographical 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.

ASJC Scopus subject areas

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

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@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,

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

language = "English",

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journal = "Synthetic Metals",

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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.

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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

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ASJC Scopus subject areas

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