chapter  13
12 Pages

MICROHETEROGENEOUS TITANIUM ZIEGLER-NATTA CATALYSTS: 1,3-DIENE POLYMERIZATION UNDER ULTRASOUND IRRADIATIONS

Abstract ................................................................................................. 146 13.1 Introduction .................................................................................. 146 13.2 Experimental Part ........................................................................ 147 13.3 Result and Discussion .................................................................. 148 13.4 Conclusion ................................................................................... 156 Acknowledgments ................................................................................. 156 Keywords .............................................................................................. 156 References ............................................................................................. 156

ABSTRACT

Polymerization of butadiene and isoprene under action of microheterogeneous titanium based catalyst with ultrasonic irradiation of the reaction mixture at the initial time is studied. It is shown that ultrasonic irradiation causes transformation multisite catalyst in a quasi-single site. At that activity of dominant site depends on the monomer nature.