Thermoreversible gels of acid doped polyaniline

Electrical switching based on network transitions

T. Vikki, Heikki Isotalo, Janne Ruokolainen, Pentti Passiniemi, Olli Ikkala

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)

Abstract

Thermoreversible gelation of polyaniline (PANI) dissolved in dodecyl benzene sulphonic acid (DBSA) is here demonstrated for systems containing ca. 7–16 wt % of PANI. Below the gel melting temperature such materials show elastic behavior, i.e. recovery of dimensions after stress release, and frequency independent dynamic moduli. Above the gel melting temperature, the materials are viscous fluids showing frequency dependent dynamic moduli. The gel melting temperature depends on the weight fraction of PANI dissolved in DBSA, It is shown that thermoreversible gelation allows temperature controlled reversible switching of electrical conductivity.
Original languageEnglish
Pages (from-to)742-745
Number of pages4
JournalSynthetic Metals
Volume101
Issue number1-3
DOIs
Publication statusPublished - 1999
MoE publication typeA1 Journal article-refereed

Fingerprint

Polyaniline
Melting point
Sulfonic Acids
Gels
gels
Gelation
Benzene
acids
Acids
sulfonic acid
melting
gelation
benzene
temperature
viscous fluids
Recovery
Fluids
recovery
electrical resistivity
polyaniline

Cite this

Vikki, T. ; Isotalo, Heikki ; Ruokolainen, Janne ; Passiniemi, Pentti ; Ikkala, Olli. / Thermoreversible gels of acid doped polyaniline : Electrical switching based on network transitions. In: Synthetic Metals. 1999 ; Vol. 101, No. 1-3. pp. 742-745.
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abstract = "Thermoreversible gelation of polyaniline (PANI) dissolved in dodecyl benzene sulphonic acid (DBSA) is here demonstrated for systems containing ca. 7–16 wt {\%} of PANI. Below the gel melting temperature such materials show elastic behavior, i.e. recovery of dimensions after stress release, and frequency independent dynamic moduli. Above the gel melting temperature, the materials are viscous fluids showing frequency dependent dynamic moduli. The gel melting temperature depends on the weight fraction of PANI dissolved in DBSA, It is shown that thermoreversible gelation allows temperature controlled reversible switching of electrical conductivity.",
author = "T. Vikki and Heikki Isotalo and Janne Ruokolainen and Pentti Passiniemi and Olli Ikkala",
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Vikki, T, Isotalo, H, Ruokolainen, J, Passiniemi, P & Ikkala, O 1999, 'Thermoreversible gels of acid doped polyaniline: Electrical switching based on network transitions', Synthetic Metals, vol. 101, no. 1-3, pp. 742-745. https://doi.org/10.1016/S0379-6779(98)00224-0

Thermoreversible gels of acid doped polyaniline : Electrical switching based on network transitions. / Vikki, T.; Isotalo, Heikki; Ruokolainen, Janne; Passiniemi, Pentti; Ikkala, Olli.

In: Synthetic Metals, Vol. 101, No. 1-3, 1999, p. 742-745.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Thermoreversible gels of acid doped polyaniline

T2 - Electrical switching based on network transitions

AU - Vikki, T.

AU - Isotalo, Heikki

AU - Ruokolainen, Janne

AU - Passiniemi, Pentti

AU - Ikkala, Olli

PY - 1999

Y1 - 1999

N2 - Thermoreversible gelation of polyaniline (PANI) dissolved in dodecyl benzene sulphonic acid (DBSA) is here demonstrated for systems containing ca. 7–16 wt % of PANI. Below the gel melting temperature such materials show elastic behavior, i.e. recovery of dimensions after stress release, and frequency independent dynamic moduli. Above the gel melting temperature, the materials are viscous fluids showing frequency dependent dynamic moduli. The gel melting temperature depends on the weight fraction of PANI dissolved in DBSA, It is shown that thermoreversible gelation allows temperature controlled reversible switching of electrical conductivity.

AB - Thermoreversible gelation of polyaniline (PANI) dissolved in dodecyl benzene sulphonic acid (DBSA) is here demonstrated for systems containing ca. 7–16 wt % of PANI. Below the gel melting temperature such materials show elastic behavior, i.e. recovery of dimensions after stress release, and frequency independent dynamic moduli. Above the gel melting temperature, the materials are viscous fluids showing frequency dependent dynamic moduli. The gel melting temperature depends on the weight fraction of PANI dissolved in DBSA, It is shown that thermoreversible gelation allows temperature controlled reversible switching of electrical conductivity.

U2 - 10.1016/S0379-6779(98)00224-0

DO - 10.1016/S0379-6779(98)00224-0

M3 - Article

VL - 101

SP - 742

EP - 745

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

IS - 1-3

ER -