Novel photocrosslinking of polymers bearing pendant acyloxyimino groups in the presence of p‐benzoquinone

Abstract

Films of polymers bearing pendant acyloxyimino (AOI) groups become insoluble when irradiated by ultraviolet light in the presence of p-benzoquinone. Post-heating of these films after irradiation also induces further the insolubilization. In the photocrosslinking, it is deduced that p-benzoquinone serves not only as sensitizer for the decomposition of A01 groups but also as crosslinker during the photo-irradiation and heating after irradiation.

Effects of crosslinking by quinones on dyeing of irradiated films of copolymers bearing photobase generating groups

“…The molar ratios of the monomers incorpobeen known to work as a crosslinker on irradiarated into the copolymers were calculated from tion, 12-14 and they also worked as a crosslinker the weight percent of nitrogen determined by elein the irradiation of polymers bearing AOI mental analyses using a Yanaco MT-3 CHN groups. 15,16 In the latter case, the reactions were Corder. The molecular weights of these copolydeduced to proceed via route (ii) or (iii) in Scheme mers were determined by gel permeation chroma-1.…”