Title: Photopolymerization of 1,6-hexanediol diacrylate with deoxybenzoin as photoinitiator
Abstract: Abstract Rates of the photopolymerization of 1,6-hexanediol diacrylate (HDODA) using deoxybenzoin (DOB)/amine photoinitiator systems have been measured. Triethylamine (TEA), N,N-dimethylethanol amine (DMEA), N,N-dimethylaminoethyl methacrylate, and N,N-diethylaminoethyl methacrylate (DMEMA) are postulated to form excited state complexes (exciplexes) with DOB from whence photoreduction of DOB occurs to give the ketyl radical (identified by laser flash photolysis) and an initiating radical species. Rate enhancements on the order of 5 to 7 are reported both in nitrogen and air-saturated HDODA. Thus, deoxybenzoin which acts as a rather poor cleavage type photoinitiator in the absence of a hydrogen-donating species, becomes an effective co-photoinitiator when used in conjunction with tertiary amines.
Publication Year: 1988
Publication Date: 1988-11-01
Language: en
Type: article
Indexed In: ['crossref']
Access and Citation
Cited By Count: 15
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot