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A novel UV-curable prepolymer polypropyleneglycol diglycidyl ether diacrylate(PPGGEA) was synthesized by utilizing polypropyleneglycol diglycidyl ether(PPGGE)and acrylic acid(AA)as starting materials,N,N-dimethylbenzylamine as catalyst and p-hydroxyanisole as inhibitor.The optimum synthetic conditions were in the following:the concentration of N,N-dimethylbenzylamine was 0.80 wt%of reactants,the concentration of p-hydroxyanisole was 0.3 wt%of reactants,the reaction temperature was 90-110℃,and the molar ratio of PPGGE to AA was 1:2.2.Meanwhile,1-hydroxycyclohexyl phenyl ketone of a UV-cured initiator was added to the synthesized PPGGEA to prepare a kind of UV-cured coating.The mechanical properties of the UV-cured films were determined,giving 29.99 MPa of tensile strength,834.27 MPa of the Young’s modulus and 5.66% of elongation at tear.
A novel UV-curable prepolymerized polypropylene glycol diglycidyl ether diacrylate (PPGGEA) was synthesized by utilizing polypropylene glycol diglycidyl ether (PPGGE) and acrylic acid (AA) as starting materials, N, N-dimethylbenzylamine as catalyst and P- hydroxyanisole as inhibitor conditions were in the following: the concentration of N, N-dimethylbenzylamine was 0.80 wt% of reactants, the concentration of p-hydroxyanisole was 0.3 wt% of reactants, the reaction temperature was 90-110 ° C, and the molar ratio of PPGGE to AA was 1: 2.2.Meanwhile, 1-hydroxycyclohexyl phenyl ketone of a UV-cured initiator was added to the synthesized PPGGEA to prepare a kind of UV-cured coating. The mechanical properties of the UV-cured films were determined, giving 29.99 MPa of tensile strength, 834.27 MPa of the Young’s modulus and 5.66% of elongation at tear.