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Conducting Polymer with Improved Long-Time Stability: Polyaniline-Polyelectrolyte Complex

Published online by Cambridge University Press:  16 February 2011

Linfeng Sun ,
Sze C. Yang  and
Jia-Ming Liu
Linfeng Sun
Affiliation:
The University of Rhode Island, Department of Chemistry, Kingston, RI 02881
Sze C. Yang
Affiliation:
The University of Rhode Island, Department of Chemistry, Kingston, RI 02881
Jia-Ming Liu
Affiliation:
MRL-ITRI, Chutung 31015, Hsinchu, Taiwan, ROC
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Abstract

Conducting polymers, e.g. polyaniline, generally lack stability in their electrically conductive form due to heat and moisture induced loss of dopant. Using a template-guided synthesis scheme, we synthesized a polymeric complex of polyaniline and polyelectrolyte that showed stability against dedoping by moisture and heat. The polymeric complex consists of a strand of polyaniline twisted tightly with a strand of polyelectrolyte. The polyelectrolyte in the complex serves as a macromolecular dopant for polyaniline. These two components of the complex are tightly bound so that the dopant is not lost during tests for thermal stability and stability in water and Moisture. Since the dopant is a polyelectrolyte with high linear anion charge density, the complex resists deprotonation by water or weak base (pH < 10).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 328: Symposium Q – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials , 1993 , 167
Copyright
Copyright © Materials Research Society 1994

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References

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