| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 28641 | Journal of Photochemistry and Photobiology A: Chemistry | 2011 | 6 Pages |
A new bimolecular photoinitiator system consisting of a ferrocenium salt (Fc) and N-methyl-2-pyrrolidone (NMP) is developed for free radical photopolymerization under visible light irradiation, which was delivered by a halogen lamp. Photopolymerization profiles of tripropylene glycol diacrylate (TPGDA) show that high conversion can be easily achieved. The processes associated with the Fc/NMP system are investigated by photochemical and electrochemical experiments. The results show that the photoinitiation mechanism of this bimolecular system could occur through charge transfers between Fc and NMP.
► We develop a new bimolecular photoinitiator system consisting of a ferrocenium salt (Fc) and N-methyl-2-pyrrolidone (NMP) for free radical photopolymerization under visible light. ► The photoinitiation system of Fcs as free radical photoinitiators was simplified. ► The inherent problems of using dye as a photosensitizer was solved. ► Good initiation ability and high efficiency were found in this Fc/NMP system. ► An electron transfer process occurs between an Fc and NMP.
