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Highly Conducting and Thermally Stable Conjugated Polymers

Published online by Cambridge University Press:  25 February 2011

Alex K-Y. Jen ,
Michael Drzewinski ,
Hui Hwui Chin  and
Guilio Boara
Alex K-Y. Jen
Affiliation:
EniChem America, Inc., Research and Development Center, 2000 Cornwall Road, Monmouth Junction, New Jersey 08852
Michael Drzewinski
Affiliation:
EniChem America, Inc., Research and Development Center, 2000 Cornwall Road, Monmouth Junction, New Jersey 08852
Hui Hwui Chin
Affiliation:
EniChem America, Inc., Research and Development Center, 2000 Cornwall Road, Monmouth Junction, New Jersey 08852
Guilio Boara
Affiliation:
Istituto Guido Donegani, Functional Materials Laboratory, Via San Salvo 1, 20097 San Donato, Milanese (Milano), Italy
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Abstract

A series of highly conductive, environmentally and thermally stable polyanilines was synthesized. These polymers, which are obtained by employing careful synthetic conditions, purification procedures, and dopant variations, show interesting morphological structures and high temperature stability. Thermal studies by TGA, DSC and DMTA show a glass transition temperature (Tg) for neutral polyaniline around 185°C. This is the same temperature at which the conductivity and crystallinity decrease. Isothermal heatings of the polyaniline tosylate at 200 and 250°C in air show significant amounts of weight loss. This is due to dopant loss through irreversible chain rearrangements and air oxidation at temperatures above Tg.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 247: Symposium N – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1992 , 687
Copyright
Copyright © Materials Research Society 1992

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References

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