ZrO

2

/PMMA nanocomposite particles are synthesized through an in-situ free radical emulsion polymerization based on the silane coupling agent (Z-6030) modified ZrO

2

nanoparticles

and the morphology

size and its distribution of nanocomposite particles are investigated. Scanning electron microscopy (SEM) images demonstrate that the methyl methacrylate (MMA) feeding rate has a significant effect on the particle size and morphology. When the MMA feeding rate decreases from 0.42 ml·min

-1

to 0.08 ml·min

-1

large particles (about 200-550 nm) will not form

and the size distribution become narrow (36-54 nm). The average nanocomposite particles size increases from 34 nm to 55 nm

as the MMA/ZrO

2

nanoparticles mass ratio increased from 4︰1 to 16︰1. Regular spherical ZrO

2

/PMMA nanocomposite particles are synthesized when the emulsifier OP-10 concentration is 2 mg·ml

-1

. The nanocomposite particles could be mixed with VAc-VeoVa10 polymer matrix just by magnetic stirring to prepare the ZrO

2

/PMMA/VAc-VeoVa10 hybrid coatings. SEM and atomic force microscopy (AFM) photos reveal that the distribution of the ZrO

2

/PMMA nanocomposite particles in the VAc-VeoVa10 polymer matrix i

s homogenous and stable. Here

the grafted-PMMA polymer on ZrO

2

nanoparticles plays as a bridge which effectively connects the ZrO

2

nanoparticles and the VAc-VeoVa10 polymer matrix with improved comparability. In consequence

the hybrid coating with good dispersion stability is obtained.