Abstract: High molecular weight surfactant is a very important polymer material in daily life. These materials have some special characteristics (high molecular weight and lower surface tension), so that they could be used in lots of area. Using three different kinds of monomers, acrylamide, acrylic acid, methyl ethacrylate, a high molecular weight surfactant has been synthesized and the erformance of this surfactant has been measured such as intrinsic viscosity, surface and interfacial tension.Although the ability of decreasing surface tension of the surfactant is not better than that of low molecular weight surfactant,some special characteristics of the high molecular weight surfactant have made it more useful in lots of area.

Key words: high molecular surfactant, surface tension, polymer, performance study