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Synthesis and Properties of Photocurable Aliphatic Epoxy Modified Urethane Acrylate  

Lim, Jin-Kyu (Department of Chemistry & Material Science, Hanyang University)
Kim, Dong-Kook (Department of Chemistry & Material Science, Hanyang University)
Kim, Woo-Geun (Department of Chemistry & Material Science, Hanyang University)
Publication Information
Applied Chemistry for Engineering / v.15, no.3, 2004 , pp. 360-365 More about this Journal
Abstract
A photocurable aliphatic epoxy modified by urethane acrylate was prepared from BDGEDA, NPGEDA and the diisocyanate in order to improve the properties of an aliphatic epoxy acrylate. After mixing a photoiniatiator, the curing properties of the photocurable aliphatic epoxy modified by urethane acrylate were investigated. The viscosities of NUA were higher than BUA. The glass transition temperatures of NUA were higher than those of BUA, and NUA was thermally more stable than BUA. The hardness and abrasion of NUA were higher than those of BUA. The yellow index of both NUA and BUA showed a similar result but that of BUA was a little higher. NUA had higher tensile strength of UV cured-film than BUA, but BUA had a higher elongation than NUA.
Keywords
photocurable; aliphatic epoxy acrylate; aliphatic epoxy modified urethane acrylate; diisocyanate;
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