The Ozonization of Unsaturated Compounds. III. The Addition of Ozone to Internal and External Double Bonds in Butadiene Rubber

Abstract

Abstract 1. It was established that the curves of ozone absorption by butadiene rubbers do not show breaks. 2. Sodium butadiene rubber was ozonized 25, 50, 75 and 100%. From the quantitative determination of the external double bonds which add ozone it was established that there is no strict selectivity in the ozonization of the double bonds of rubber: the external double bonds are ozonized more rapidly than the internal and their ozonization is completed earlier than the ozonization of the internal double bonds.