Academician, doctor of sciences, professor, laureate of the State (twice) and Lenin prizes of USSR, holder of six orders including Lenin order.
Prof. Korshak had organized the Russian scientific school of polymer chemistry. He had carried out the fundamental research on polycondensation reactions and had synthesized numerous organic and organometallic polymers. Prof. Korshak had also developed the concept of branched polymers and individual polymeric forms. In 1938 he founded the laboratory of macromolecular compounds and the polymeric chemistry section of INEOS RAS and headed them until 1988.