| 摘要 |
1325307 Photopolymerization IMPERIAL CHEMICAL INDUSTRIES Ltd and ILFORD Ltd 22 Oct 1970 [24 Oct 1969] 52246/69 Heading C3P [Also in Division G2] Photo-sensitive layers for recording polymer images comprise (a) a compound which polymerizes in the presence of a free radical polymerization initiator and (b) a photo-labile organo-metallic Co (III) or Fe (III) complex of formula: (in which Y and Y<SP>1</SP> are each a hetero atom, especially O or N; R is allyl, aralkyl or optionally substituted alkyl or aryl; N and Y are joined through a bidentate ligand Z to complete a delocalized # system; N- and Y<SP>1</SP> are joined through a bidentate ligand Z<SP>1</SP>; N and N may be joined through a group W; Y and Y<SP>1</SP> may be joined through a group A; L is ammonia, an amine, water, organic phosphine, alkyl group or halogen and may or may not be present). The examples describe the imagewise polymerization of trimethylene glycol dimethacrylate, polyethylene glycol diacrylate and Ba acrylate using ethyl cobalt (III) bis-(salicylaldehyde ethylene diimine, benzyl pyridine cobaloxime and methyl aquo cobaloxime. Other polymerizable compounds mentioned are methyl methacrylatevinyl chloride and styrene.
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