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An Interesting Result of Dielectric Property for Novel Polyimides with Fluorene Groups

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Abstract:

A series of polyimide thin films were prepared successfully based on bis[3,5-dimethyl-4- (4-aminophenoxy)phenyl]methane （BDAPM）, 9,9-bis（4-（4-aminophenoxy）phenyl）fluorene (BAOFL) and different dianhydrides. And an interesting result of dielectric property for polyimide thin films was found that the polyimide thin film prepared with 3,3',4,4'-biphenyltetracarboxylic dianhydride (BPDA) exhibited high dielectric constants of 5.7 at 1MHz. Conversely, the other polyimides possessing fluorene groups showed low dielectric constants. The structures and the mechanical properties of polyimide films also proved the reason for results of dielectric properties.

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Periodical:

Materials Science Forum (Volumes 663-665)

Pages:

511-514

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.663-665.511

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Online since:

November 2010

Authors:

Yuan Yuan, Bing Xie, Yu Wang

Keywords:

Dielectric Property, Fluorene Groups, Polyimide

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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