Mesoporous silica nanoparticles immobilized salicylaldimine cobalt complexes as high efficient catalysts for polymerization of 1,3-butadiene

► We synthesize a series of new nanocatalysts by the grafting method. ► All the catalysts are spherical morphology and monodisperse. ► All the catalysts are stable up to at least 200 °C. ► All the catalysts show high conversion for polymerization of 1,3-butadiene. ► This is a facile way to synthesize the polymer-silica composite materials.