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Abstract
A series of new polymerizable photoinitiators (PIs) based on hydroxyalkylphenones has been synthesized by Grignard reaction of 4-vinylphenylmagnesiumchloride with suitable carbonyl compounds. Radical homopolymerization and copolymerization of the PIS with various vinyl monomers yielded polymer PIS compatible with either hydrophilic or hydrophobic resin systems. The PI monomers and polymers are characterized by excellent photoinitiating activity comparable with the most efficient known PIS and exhibit high migration stability.
