The dispersion of pigment slurries via incorporation with water-soluble sulfonate poly(ethylene terephthalate)

A water-soluble sulfonate poly(ethylene terephthalate) copolymer has been s ynthesized and identified as a high-temperature endurable surfactant. The g lass-transition temperature and the storage modulus increase in correlation to the increase in sulfonate content. Various characterization studies wer e performed, including light scattering, zeta-potential measurement and a s edimentation test. The results suggest that at equal numbers of sulfonate u nits in a solution, a low concentration of a dispersant of high sulfonate c ontent is more effective than a high concentration of a dispersant of low s ulfonate content.