Colossal dielectric and electromechanical responses in self-assembled polymeric nanocomposites

An electroactive polymer nanocomposite, in which high dielectric constant copper phthalocyanine oligomer (o-CuPc) nanoparticles are incorporated into the block polyurethane (PU) matrix by the combination of "top down" and "bottom up" approaches, was realized. Such an approach ena...

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Bibliographic Details
Published in:Applied physics letters 2005-10, Vol.87 (18), p.182901-182901-3
Main Authors: Huang, Cheng, Zhang, Q. M., Li, Jiang Yu, Rabeony, Manese
Format: Article
Language:English
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Summary:An electroactive polymer nanocomposite, in which high dielectric constant copper phthalocyanine oligomer (o-CuPc) nanoparticles are incorporated into the block polyurethane (PU) matrix by the combination of "top down" and "bottom up" approaches, was realized. Such an approach enables the nanocomposite to exhibit colossal dielectric and electromechanical responses with very low volume fraction of the high dielectric constant o-CuPc nanofillers ( ∼ 3.5 % ) in the composite. In contrast, a simple blend of o-CuPc and PU composite with much higher o-CuPc content ( ∼ 16 % of o-CuPc) shows much lower dielectric and electromechanical responses.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2105997