@inproceedings{89362df5379e4b51b0be9a25253aee26,
title = "Thermoreversible gels of polyaniline: Viscoelastic and electrical properties",
abstract = "We demonstrate that polyaniline (PANI) dissolved in dodecyl benzene sulphonic acid (DBSA) shows thermoreversible gelation. The dissolution has been performed in formic acid which allows particle-free complexes according to optical microscopy. Below the gelation temperature the materials are rubber-elastic in compression experiments, the storage modulus G' does not essentially depend on frequency, and the samples are electronically conductive. Above the gelation temperature, G' indicates flow-like behavior and drastically lower ionic conductivity is observed. These results suggest reversible, i.e. fusible, network formation. The properties are compared with gels consisting of camphor sulphonic acid (CSA) doped PANI dissolved in m-cresol which are poorly thermoreversible.",
keywords = "polymers, electroactive, gel, network, rheology, electrical conductivity",
author = "Olli Ikkala and T. Vikki and Janne Ruokolainen and P. Hiekkataipale and Pentti Passiniemi and Tapio M{\"a}kel{\"a} and Heikki Isotalo",
year = "1998",
doi = "10.1557/PROC-488-377",
language = "English",
series = "Materials Research Society Symposia Proceedings",
publisher = "Materials Research Society",
pages = "377--382",
editor = "Reynolds, {John R.} and A.K.-Y. Jen and L.R. Dalton and M.F. Rubner and L.Y. Chiang",
booktitle = "Electrical, Optical and Magnetic Properties of Organic Solid State Materials IV",
address = "United States",
note = "Electrical, optical, and magnetic properties of organic solid-state materials IV ; Conference date: 01-12-1997 Through 05-12-1997",
}