Synthesis of a Modifier for Rubbers with Silica-filler by Reaction of N-tert-Butyl-2-benzothiazolylsulfenamide with Trimethylolpropane Triglycidyl Ether and Characterization of the Reaction Product

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Reaction of N-tert-butyl-2-benzothiazolylsulfenamide with trimethylolpropane triglycidyl ether was performed, and the product was characterized and studied as an additive to rubber. Interaction of this additive with rubber was studied by the method of equilibrium swelling. The additive was found to increase the amount of cross-links in the polymer matrix and to improve the process characteristics of rubber stocks with silica, decreasing their viscosity and vulcanization time and enhancing the resistance to scorching. The use of this additive allows preparation of vulcanized rubbers with higher modulus, compared to the rubbers modified with the product of the reaction of methacrylic acid with trimethylolpropane triglycidyl ether.