About radiation-chemical interaction between disulfide chloride aromatic compounds with unsaturated elastomers

Full text : It is known that organic sensitizers containing active halogen reacts vigorously with the carbon of the molecule elastomer. In the presence of compounds containing two or more active polar groups, the observed radiation structuring of rubber, the elastomer with formation of a new structure, which has high resistance to heat aging and dynamic endurance was observed. In the present work it was suggested to use as sensitizing agent disulfide chloride benzene (DSCB) in radioactive processes for BNR which obtained from the reaction of benzene with excess of chlorosulfonic acid. The results showed that the process of structuring of BNR with DSCB in absence of oxides is slow and the degree of cross-linking is low. Acceleration of the curing process under the gamma-radiation is observed only in the presence of zinc oxide, which is characterized most reactive. On the basis of the IR spectra can be concluded that irradiation of system BNR-DSCB by way of splitting off active chlorine in the sulfochloride groups occurs chemical interaction DSCB with the double bonds of the polymer.