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A new visible light bimolecular photoinitiator system for free radical polymerization

Paper ID Volume ID Publish Year Pages File Format Full-Text
28641 44083 2011 6 PDF Available
Title
A new visible light bimolecular photoinitiator system for free radical polymerization
Abstract

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.

Keywords
Photopolymerization; Photochemistry; Ferrocenium salt; N-methyl-2-pyrrolidone; Photoinitiator
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A new visible light bimolecular photoinitiator system for free radical polymerization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 222, Issues 2–3, 15 August 2011, Pages 330–335
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us