Synthesis process of polycarboxylate water-reducer intermediate macromonomer

A kind of monomer with reaction activity,methoxypolyethylene glycol acrylate,which could be used as the intermediate macromonomer of polycarboxylate high performance water-reducer,was prepared by the esterification of acrylic acid and methoxypolyethylene glycol.The experimental conditions were investigated,and the optimum conditions for preparing methoxypolyethylene glycol acrylate were determined.