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N-Substituted and Ring-Substituted Water Soluble Self-Aciddoped Conducting Polyanilines and their Blends with Poly(Vinyl Alcohol): Structure, Properties, and Applications

Published online by Cambridge University Press:  10 February 2011

Show-An Chen ,
Gue-Wuu Hwang ,
Kuen-Ru Chuang ,
Shyi-Long Shyb  and
Wen-An Loong
Show-An Chen
Affiliation:
Department of Chemical Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30043, ROC
Gue-Wuu Hwang
Affiliation:
Department of Chemical Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30043, ROC
Kuen-Ru Chuang
Affiliation:
Department of Chemical Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30043, ROC
Shyi-Long Shyb
Affiliation:
National Nano Device Laboratory, Hsinchu, Taiwan, ROC
Wen-An Loong
Affiliation:
Department of Applied Chemistry, Chiao Tung University, Hsinchu, Taiwan, ROC
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Abstract

The water-soluble self-acid-doped conducting polyanilines, poly(aniline-co-Npropanesulfonic acid aniline) (PAPSAH) and sulfonic acid ring substituted polyaniline (SPAN), in aqueous solutions at full concentration range are characterized. The PAPSAH and SPAN can be cast into free standing films from their aqueous solutions and have the doping level, about 0.3. Their conductivities at room temperature are about the same (10−2 S/cm). As temperature increases, conductivities of PAPSAH and SPAN increase to the maxima about 10−1 S/cm at 110°C and 190°C respectively. Above these temperatures, their conductivities drop resulting from thermal undoping accompanying with a loss of some polarons. The incorporation of PVA into PAPSAH and SPAN provides excellent flexibility and only slightly decreased conductivity (10−3 S/cm at equal weight %). Applications of these two polymers and their blends in electron beam lithography and light emitting diode are studied.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 413: Symposium W – Electrical, Optical, and Magnetic Properties of Organic Solid State Materials III , 1995 , 471
Copyright
Copyright © Materials Research Society 1996

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References

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