Abstract
A series of core-shell latexes comprising a poly( n-butyl acrylate- co-methyl methacrylate- co-methacrylic acid) (PBA/MMA/MAA) core and a poly(styrene- co-acrylonitrile) (PS/AN), poly(butyl acrylate- co-methyl methacrylate) (PBA/MMA) shell were prepared at different shell composition ratios. These core-shell binders were used for preparation of decorative coatings. The latexes were synthesized by a semi-continuous sequential emulsion polymerization and characterized by using transmission electron microscopy (TEM), particle size analyser, viscometry and opacity of paint film. The core-shell emulsion with styrene/acrylonitrile ratio 60/40 as shell composition shows the best optical properties.
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