Photo-induced degradation of selected polyimides in the presence of oxygen: a rapid decomposition process

Charles E. Hoyle; David Creed; Edguardo Anzures; P. Subramanian; Rajamani Nagarajan

doi:10.1117/12.50661

1 December 1991 Photo-induced degradation of selected polyimides in the presence of oxygen: a rapid decomposition process

Charles E. Hoyle, David Creed, Edguardo Anzures, P. Subramanian, Rajamani Nagarajan

Author Affiliations +

Proceedings Volume 1559, Photopolymer Device Physics, Chemistry, and Applications II; (1991) https://doi.org/10.1117/12.50661
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

The photo-oxidation of certain polyimides has been found to be extremely efficient provided that the photolysis is conducted in the presence of oxygen. The apparent rate of decomposition depends on the chemical composition of the components composing the polyimide backbone as well as the spectral properties of the light source. In the case of polyimides which are made from a hexafluorinated dianhydride and a hexafluorinated diamine, the photo-oxidation process is extremely rapid. The photolysis mechanism is quite complicated, but analysis of model compound photochemistry by conventional methods indicates that a variety of products, which themselves are photolabile, are generated in the primary photochemical process.

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Charles E. Hoyle, David Creed, Edguardo Anzures, P. Subramanian, and Rajamani Nagarajan "Photo-induced degradation of selected polyimides in the presence of oxygen: a rapid decomposition process", Proc. SPIE 1559, Photopolymer Device Physics, Chemistry, and Applications II, (1 December 1991); https://doi.org/10.1117/12.50661

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