Preparation of reflective and electrically conductive surface-silvered polyimide films from silver(I) complex and PMDA/ODA via an in situ single-stage technique

Optically reflective and/or electrically conductive surface-silvered polyimide films have been prepared by thermal curing of the (1,1,1-trifluoro-2,4-pentadionato) silver(I) (AgTFA)-containing poly(amic acid) derived from pyromellitic dianhydride (PMDA) and 4,4′-oxydianiline (4,4′-ODA) in dimethylac...

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Bibliographic Details
Published in:European polymer journal 2006-09, Vol.42 (9), p.2023-2030
Main Authors: Qi, Sheng-Li, Wang, Wen-Cai, Wu, De-Zhen, Wu, Zhan-Peng, Jin, Ri-Guang
Format: Article
Language:English
Subjects:
Applied sciences
Conductivity
Exact sciences and technology
Forms of application and semi-finished materials
Polyimide
Polymer industry, paints, wood
Reflectivity
Sheets and films
Silver
Technology of polymers
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Summary:Optically reflective and/or electrically conductive surface-silvered polyimide films have been prepared by thermal curing of the (1,1,1-trifluoro-2,4-pentadionato) silver(I) (AgTFA)-containing poly(amic acid) derived from pyromellitic dianhydride (PMDA) and 4,4′-oxydianiline (4,4′-ODA) in dimethylacetamide. Films with specular reflectivity of 20–40% and surface electrical resistivity less than 7 Ω/sq were obtained. Two different thermal curing cycles were applied for the imidization and silver reduction process, and film conductivity were only obtained under rapid thermal treatment. The metallized films exhibit mechanical properties close to that of the parent polyimide films. Films were characterized by dynamic mechanical thermal analysis, X-ray diffraction, transmission electron microscopy, atomic force microscopy and mechanical measurements.
ISSN:0014-3057
1873-1945
DOI:10.1016/j.eurpolymj.2006.03.009