ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 19, Number 4
JKCSEZ 19(4)
August 20, 1975 

The degradation mechanisms of naphthoquinone-1,2-diazide-5-sulfonyl esters(PGND, BEND and PVAND) of polyglyceryl phthalate (PG), bisphenol A-epichlorohydrin (BE) and polyvinyl alcohol (PVA) were studied by infrared absorption spectra. Absorption band due to C=N=and C=O of o-quinonediazide group decreased or disappeared after sufficient exposing to light. And also, absorption band C=O of indene carboxylic acid was increased. From the results, it may be concluded that the above photosensi tive polymers were dissociated to indene carboxylic acid soluble in aqueous alkali solution. Further, the effect of sensitizers were examined by the variation of intensity in infrared absorption spectra of sensitized and unsensitized samples.