New functionalized water-soluble benzophenones: a laser flash photolysis study
Open Access
- 1 November 1985
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Chemistry
- Vol. 63 (11) , 3001-3006
- https://doi.org/10.1139/v85-498
Abstract
Two water-soluble ionic benzophenones containing a quatemized amine and a sulphonate group have been investigated by laser flash photolysis. The decay kinetics and spectra of their triplet states were studied and quenching constants by triethanolamine, isopropanol, and methyl viologen determined. These data are of interest when these benzophenones are used as initiators for photo-polymerizing water-soluble acrylates in homogeneous solution or in reverse micellar assemblies. The high water solubility of these compounds allows the bimolecular deactivations due to triplet–triplet (kTT) and triplet–ground state (kSQ) interactions to be determined more accurately than in the case of benzophenone itself.Keywords
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