Abstract: Methyl gallate acrylate (MG-AC) was prepared by reaction between methyl gallate (MG) (tannins model compound) and acryloyl chloride (AC).The effects of temperature and raw materials molar ratio on the yield of product were investigated.FT-IR,GC-MS,elemental analysis,¹³C NMR and GPC were used to characterize its structure and polymerization activity.And then,the optimum synthesis conditions were 35℃,molar ratio of AC and MG 1.1:1.Under these conditions,the yield of product was 83.9%.FT-IR results showed that the acrylate-functional-group was successfully grafted onto methyl gallate.GC-MS results showed that the purity of methyl gallate acrylate was 98.86%.Elemental analysis indicated that the mass fractions of carbon,hydrogen and oxygen were 55.46%,4.20% and 40.33%,respectively.They almost agreed to the theoretical value of MG-AC.Thus,the synthesized MG-AC was monosubsituted monomer.¹³C NMR results comfirmed the monosubsituted structure of monomer.GPC analysis results showed that the MG-AC could polymerize in the presence of the initiator,and the M_w,M_n and M_w/M_n of the polymer were 13 637,11 820 and 1.15.All the results showed that the methyl gallate acrylate was successfully synthesized and had good polymerization activity.

Key words: acryloyl chloride, methyl gallate, tannins model compound