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- W2504128220 abstract "IR spectroscopy may be used to follow two reactions occurring in polyimides exposed to high temperatures and humidities: hydrolysis of the imide linkages and hydrolysis of residual anhydride end groups. The hydrolytic susceptibilities of several polyimides were measured at 90°C/95% R.H. Polymers based on benzophenone tetracarboxylic acid dianhydride (with either oxydianiline or m-phenylene diamine) appeared to undergo rather rapid hydrolysis initially, but the reaction had essentially halted by the time the measured imide content had decreased by 5-6%. Polymers based on 3,3′,4,4′-biphenyl tetracarboxylic acid dianhydride (with p-phenylene diamine) and pyromellitic dianhydride (with oxydianiline) showed no significant imide hydrolysis. In all the polymers, the anhydride was hydrolyzed quite readily." @default.
- W2504128220 created "2016-08-23" @default.
- W2504128220 creator A5062947005 @default.
- W2504128220 date "1989-09-05" @default.
- W2504128220 modified "2023-09-23" @default.
- W2504128220 title "Polyimide Hydrolysis" @default.
- W2504128220 doi "https://doi.org/10.1021/bk-1989-0407.ch004" @default.
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