하프-에스터 아크릴레이트를 이용한 광경화형 에폭시 변성 아크릴레이트의 합성과 물성

Abstract

Various half-ester acrylates were prepared from anhydrides and 2-hydroxyethyl acrylate. Photocurable epoxy modified acrylates were prepared from synthesized half-ester acrylate and neopentylglycoi diglycidylether. Physical properties such as hardness, yellowing, tensile strength and elongation were tested and compared as the structure of oligomer in cured-film differs. It was found that viscosity of neopentylglycoi diglycidylether-hexahydrophthalic anhydride (NP-HA) was highest. Hardness and tensile strength of photocrosslinked neopentylglycoi diglycidylether-hexahydrophthalic anhydride were better than those of other photocrosslinked epoxy acrylates. And 5% weight loss temperature of photocrosslinked neopentylglycoi diglycidylether-hexahydrophthalic anhydride was higher than those of other photocrosslinked epoxy acrylates. Value of yellow index of photocrosslinked neopentylglycoi diglycidyl ether-succinic anhydride (NP-SA) was lower than the other products.