235 MEDV^EDEV 



Office: Academy of Sciences Lithuanian SSR 



K. Pizhelos Ulitsa 28 

 Vilnyus, Lithuanian SSR 



MEDVEDEV, SERGEI SERGEEVICH (Chemist) 



S. S. Medvedev was born May 17, 1891. In 1919 he graduated 

 from Moscow University. He began working at the L. Karpov 

 Physico-Chemical Institute in 1922 and at the same time taught 

 at the Moscow Institute of Fine Chemical Technology. In 1943 

 he was made an Honored Scientist of the RSFSR. He was elect- 

 ed a Corresponding Member of the U.S.S.R. Academy of Sci- 

 ences in 1943 and in 1958, an Academician. In 1946 he won a 

 Stalin Prize. 



Medvedev has been concerned with polymerization process- 

 es, which are the bases of many important chemical industries- 

 synthetic rubber and plastics. He has studied the mechanism 

 of many radical chain reactions and emulsion polymerization. 

 He synthesized new elastic materials with increased heat re- 

 sistance. In the area of radiation chemistry, Medvedev investi- 

 gated the influence of nuclear radiation on the processes of 

 polymerization. Recently he has done research on the theory 

 of slow oxidation of hydrocarbons. 



In 1961 he received the Order of Lenin and two orders of the 

 Red Banner of Labor. 

 Bibliography: 



and Yu. A. Aleksandrova, Y. L. Huan, A. N. Pravednikov. 

 Reactions of oxygen- containing radicals of type RO. Dok- 

 lady Akad. Nauk S.S.S.R. 123, 1029-32 (1958). C A. 53, 

 7736a (1959). 



and A. R. Gantmakher, E. B. Lyudvig. Mechanism of initi- 

 ation of cationic polymerization in the presence of metal 

 halides. Doklady Akad. Nauk S. S. S. R. 127, 100-3 (1959). 

 C. A. 53, 21099e (1959). 



and V. M. Yur'ev, A. N. Pravednikov . Effect of side chains 

 on rate of oxidation of carbon chain polymers. Doklady 

 Akad. Nauk S.S.S.R. 124, 335-7 (1959). C A. 53, 8781b 

 (1959). 



and G. D. Berezhnoi, P. M. Khomikovskii. Kinetics of the 

 emulsion polymerization of styrene. Vsyolomolekulyarnye 

 Soedineniya_2, 141-52 (1960). C. A. 54, 19015a (1960). 

 and A. N. Pr a vednikov, Yin-Shen Kan. Crossing polymer 

 chains with T-radiation. Proc. U. N. Intern. Conf. Peaceful 

 Uses At. Energy, 2nd, Geneva, 1958, 29, 192-5 (1959). 

 C. A. 54, 20431e (1960). 



