Abstract
Bisvinyl-A and styrene core-shell copolymer nanoparticles with different particle size were synthesized through the composite emulsion polymerization. The PS (polystyrene) blends with different concentration and particle size of core-shell nanoparticles were prepared. The impact strength and the transparency were studied which indicated that the best condition for reinforced the PS was that the particle size was above 100nm and the concentration of the particles in PS blends was roughly within the range of 2 ∼ 5% weight percent, which improved the strength of PS near to two times while the PS transparency was not affected.