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Polymerization kinetics of photocurable acrylic resins

✍ Scribed by Ewa Andrzejewska; Maciej Andrzejewski

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
217 KB
Volume
36
Category
Article
ISSN
0887-624X

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✦ Synopsis

The polymerization kinetics of photocurable compositions based on an epoxyacrylate oligomer and three analogous diacrylate monomers were investigated. The effects of the oligomer-to-monomer ratio, curing conditions, and monomer structure were considered. The polymerization is characterized by a synergistic effect observed in a wide temperature range and occurring for the polymerization rate both in air and Ar and for final conversions in air. The final conversion in Ar is determined by viscosity of a formulation. The presence of a heteroatom (S or O) in the ester group of the reactive diluent is beneficial for the polymerization course, especially in air atmosphere. The best results were obtained for the sulfur-containing monomer.

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