Abstract: Three reactive nonionic surfactants with 1-olefinic bond were synthesized. Glycerol monostearate(GMS), glycerol monooleate(A300), and sorbitan monooleate(Span 80) were adopted as the starting materials to react with acrylic acid(AA) separately, p-toluene sulfonic acid as the catalyst and hydroquinone as the inhibitor. The conversion of the products was determined by means of AA adding level and the amount of the residual AA in the system. It was shown that the conversion of AA got to about 91%, and the yields of three different products, AGMS, AA 300 and ASpan 80 are over 80% respectively. Spectra of FTIR, ¹H NMR and FTICR-MS were used to further confirm the formation of the three target products and their chemical structures. Then they were grafted with LLDPE, the T_c of the grafted LLDPE is higher than the plain, and the contact angles of the water on the grafted LLDPE film decrease. The terms of antifogging were prolonged when the grafted LLDPE was used as the agriculture films.

Key words: Nonionic surfactant, Glycerol monostearate, Glycerol monooleate, Sorbitan monooleate, Acrylic acid