POLY 188 |
| Water-borne acrylic resins and polyurethanes have been used widely in paints and inks. Hybridized materials based on polyurethanes and acrylics are likely to show interesting properties and performances. Polyurethane-acrylic hybrid latexes are prepared by blending acrylic monomers with polyurethane prepolymer bearing terminal vinyl groups, dispersing them in water and allow the dispersion to polymerize. Latexes of different composition were done by varying either level of DL2000 or that of DMPA. It is found that the average particle size of the resulting latex decreased with a narrower particle distribution and a higher zeta-potential increased either when DL2000 amount decreased or when DMPA content increased. The tensile strength of PUA films was increased when DL2000 or DMPA amount was decreased. Mechanism of the polymerization and that of latex property variation are discussed. |
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General Papers: Functional Materials
6:00 PM-8:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Polymer Chemistry |