Highly reflective polyimide films created by supercritical fluid infusion of a silver additive
1997; Wiley; Volume: 64; Issue: 7 Linguagem: Inglês
10.1002/(sici)1097-4628(19970516)64
ISSN1097-4628
AutoresRobert K. Boggess, Larry T. Taylor, Diane M. Stoakley, Anne K. St. Clair,
Tópico(s)Epoxy Resin Curing Processes
ResumoSupercritical fluid infusion of a silver-containing additive [1,5-cyclooctadiene silver(I)-1,1,1,5,5,5-hexafluoroacetylacetonate] into a fully cured polyimide was achieved with moderately high-density carbon dioxide at 110°C for the first time. The polyimide was derived from 4,4′-oxydianiline and 3,3′,4,4′-benzophenone tetracarboxylic acid dianhydride. After infusion for approximately 60 min, the resulting film was then recured at 300°C in air. During this time, a silver mirror formed on both film surfaces. The nature of the silver and its distribution within the film and on the film surface were established via microscopy and surface analysis techniques. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1309–1317, 1997
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