초록 |
In this study the nonaqueous dispersion polymerization of MMA/BA in isopropanol with poly(BA/(M)AA/HEA) as a stable polymeric dispersants was investigated. Nonaqueous dispersant(NAD) are the particles of the hard core / soft shell morphology, and the water retention capacity could be enhanced with improved holding powder. Such polymeric dispersant produced by graft emulsion can keep various physical properties and dispersion stability for extended periods by adjusting the Tg of the protective colloids. In addition, such particles can act as a bridge between the internal and external structures. The polymeric dispersant satisfied the adhesive properties showing flexibilities. And, the ionic dipolar interactions polymeric dispersant films provided good drying and stiffer deformation under the optimum conditions of ionic dipolar interactions. |