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Silver-Polyimide Nanocomposite Membranes: Self-Generated Highly Reflective Flexible Mirrored Surfaces

Published online by Cambridge University Press:  10 February 2011

R. E. Southward ,
M. Pevzner  and
D.W. Thompson
R. E. Southward
Affiliation:
Structure and Materials Competency, NASA Langley Research Center, Hampton, VA23681.
M. Pevzner
Affiliation:
Department of Chemistry, College of William and Mary, Williamsburg, VA 23187.
D.W. Thompson
Affiliation:
Department of Chemistry, College of William and Mary, Williamsburg, VA 23187.
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Abstract

The synthesis of reflective silvered polyimide films by a single-stage auto-metallization process entailing the (hexafluoroacetylacetonato)silver(I) complex dissolved in solutions of poly(amic acid)s and polyimides formed from 2,2-bis(3,4-dicarboxyphenyl)hexafluoropropanedianhydride (6FDA) and 2,2-bis(4-(4-aminophenoxy)hexafluoropropane (4-BDAF) is described. Heating cast silver(I)-poly(amic acid)/polyimide films effects silver(I) reduction and nanoaggregation giving reflective films for Ag concentrations from 6-10 wt %. A6% silver film gives specular reflectivies greater than 80%. Films prepared from the soluble fully imidized form of 6FDA/4-BDAF were less reflective.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 775: Symposium P – Self-Assembled Nanostructured Materials , 2003 , P7.4
Copyright
Copyright © Materials Research Society 2003

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