A number of polyester sulfonates were synthesized by two ways the sulfonation reaction of unsaturated polyester and the condensation polymerization of monomers containing sulfonic-group. The stable emulsions were prepared simultaneously. Effect of phase transfer catalyst, condensation polymerization catalyst and other conditions on the synthesis of the polyester sulfonates was discussed. In addition, hydrophilicity, electric conductivity and stability of emulsion were also mentioned and showed in this paper.
