Water Dispersible Sulfo-Polyester Resins with Controlled Nano-Sized Particles

Abstract

<div>Water dispersible polyester resins derived from dimethyl terephthalate, dimethyl 5-sulfoisophthalate sodium salt, 1,2-propane diol and diethylene glycol were prepared. A</div><div>Design of Experiment (DOE) was explored by varying the concentration of the ionic 5-sulfo-isophthalate sodium salt and diethylene glycol at various molecular weights and found to</div><div>correlate with particle size dispersion of the sulfonated resins in water. An empirical model for the resin glass transition was also obtained through experimental design.</div>