Thermoreversible gels of acid doped polyaniline: Electrical switching based on network transitions

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

doi:10.1016/S0379-6779(98)00224-0

Thermoreversible gels of acid doped polyaniline: Electrical switching based on network transitions

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

VTT Technical Research Centre of Finland

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

16 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 language	English
Pages (from-to)	742-745
Journal	Synthetic Metals
Volume	101
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(98)00224-0
Publication status	Published - 1999
MoE publication type	A1 Journal article-refereed

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title = "Thermoreversible gels of acid doped polyaniline: Electrical switching based on network transitions",

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",

year = "1999",

doi = "10.1016/S0379-6779(98)00224-0",

language = "English",

volume = "101",

pages = "742--745",

journal = "Synthetic Metals",

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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

SN - 0379-6779

VL - 101

SP - 742

EP - 745

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Thermoreversible gels of acid doped polyaniline: Electrical switching based on network transitions

Abstract

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