Abstract
Optically reflective composite polyimide films have been prepared by casting a dimethylacetamide solution of silver(I) acetate, hexafluoroacetylacetone, and the poly(amic acid) derived from 3,3‘,4,4‘-benzophenone tetracarboxylic acid dianhydride (BTDA) and 4,4‘-oxydianiline (4,4‘-ODA) onto an fully imidized parent BTDA/4,4‘-ODA base. Thermal curing of the silver(I)-containing poly(amic acid) topcoat leads to imidization with concomitant silver(I) reduction followed by silver(0) migration/aggregation yielding a reflective, but not conductive, silver surface. This “film-on-film” composite approach minimizes the silver required for the formation of a reflective surface and preserves the essential mechanical and thermal properties of the parent polymer. The metallized films exhibit outstanding metal−polymer and polymer−polymer adhesion, with the strong metal−polymer adhesion attributable to mechanical interlocking and/or encapsulation. Films were characterized by X-ray, DSC, TGA, XPS, TEM, and AFM.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
