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6-Benzoyl-1,3-benzodioxolane as a photoinitiator for free radical polymerization

Paper ID Volume ID Publish Year Pages File Format Full-Text
27964 44053 2009 6 PDF Available
Title
6-Benzoyl-1,3-benzodioxolane as a photoinitiator for free radical polymerization
Abstract

6-Benzoyl-1,3-benzodioxolane (BBDO), a hydrogen abstraction type photoinitiator for free radical polymerization, was synthesized and characterized. Its capability to act as an initiator for the polymerization of methyl methacrylate (MMA), styrene (St) and multifunctional monomers in the presence of air was examined. Relative photopolymerization efficiencies of BBDO, benzophenone (BP), and their combination with an amine synergist such as ethyl-4-dimethylaminobenzoate (EDAB) are compared. UV–vis, FT-IR, 13C NMR and polymerization studies revealed that the postulated mechanism is based on the intermolecular reaction. In contrast to BP-based photoinitiators, BBDO does not require an additional hydrogen donor for initiation.

Keywords
Benzophenone; Photochemistry; Type II photoinitiator; Free radical polymerization
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6-Benzoyl-1,3-benzodioxolane as a photoinitiator for free radical polymerization
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 204, Issue 1, 30 April 2009, Pages 7–12
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
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Price was $35.95
You save - $31
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