Modification of elastomers by nitration
The results of investigations carried out during more than ten years at the Polymers Department of the College of Chemical Technology in Sofia in the field of nitration of elastomers and characterisics of the products of this process have been described. The mechanism and kinetics of nitration of polydienes has been presented in general and the case of nitration of butadiene -s tyrene rubber with nitric acid treated in detail. A special attention has been paid to the applications of multifunctional nitrooligomers and their derivatives, salts or esters, as crosslinking agents for elastomers, inhibitors of vinyl monomers polymerization, components of paints and lacquers imparting advantageous properties to the coatings, and corrosion inhibitors.
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