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Conjugated polymers for thin film coating process

Published online by Cambridge University Press:  15 March 2011

Zhexiong Tang ,
Wenguang Li ,
Cheryl Nowak  and
Sze Yang
Zhexiong Tang
Affiliation:
Department of Chemistry, University of Rhode Island, Kingston, RI 02879
Wenguang Li
Affiliation:
Department of Chemistry, University of Rhode Island, Kingston, RI 02879
Cheryl Nowak
Affiliation:
Department of Chemistry, University of Rhode Island, Kingston, RI 02879
Sze Yang
Affiliation:
Department of Chemistry, University of Rhode Island, Kingston, RI 02879
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Abstract

In this paper, we present the syntheses of the conjugated polymers of different “effective molecular weights.” The goal is to be able to optimize the thin film coating process without compromising the electronic, optical and electroactive properties.

Our strategy for controlling the effective molecular weight is to synthesize a double-strand conducting polymer that is an inter-polymer complex of a polymeric dopant and a conjugated polymer. The first strand of the two-strand complex is either a polyaniline or a polypyrrole chain, while the second strand is a poly(acrylic acid). The molecular weight of poly(acrylic acid) is used as a parameter for adjusting the coating and film-forming properties.

We found that the inter-polymer complexes are dispersible in water. The dispersion stability is strongly dependent on the molecular weight of the poly(acrylic acid) strand. The dispersion is more stable for polymers synthesized with higher molecular weight of poly(acrylic acid). We also found that the particle size and particle morphology are dependent on the effective molecular weight.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 708: Symposium BB – Organic Optoelectronic Materials, Processing and Devices , 2001 , BB7.4
Copyright
Copyright © Materials Research Society 2002

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References

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