In situ deposits of copper and copper oxide containing condensation polyimide filmsNovel copper-polyimide composites have been synthesized via simultaneous thermal decomposition of solid solutions of bis (trifluoroacetylacetonato) copper (II) and thermal cyclodehydration of polyimide acid. In contrast to conventional filled polymer composites which are prepared by dispersion of particles or fibers in a polymer matrix this study has yielded in general uniform Cu or CuO dispersions of very small particle size that reside near the film surface that was exposed to the atmosphere during curing. The nature of the copper deposit, the thickness of the copper deposit, and the polyimide overlayer which bonds the copper to the polymer substrate depend on the curing atmosphere used. A variety of analytical surface methods along with thermogravimetric analysis and variable temperature (surface and volume) electrical resistivity measurements have been used to characterize these thin, flexible copper doped polyimide films.
Document ID
19880045793
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Porta, G. M. (Virginia Polytechnic Inst. and State Univ. Blacksburg, VA, United States)
Taylor, L. T. (Virginia Polytechnic Institute and State University Blacksburg, United States)