Ivan Lavrentevich Kondakov
Ivan Lavrentjewitsch Kondakow , Russian Ива́н Лавре́нтьевич Кондако́в , (born October 8, 1857 in Vilujsk , Yakutia ; † October 14, 1931 in Elva near Tartu ) was a Russian chemist who was a pioneer in synthetic rubber .
Life
Kondakov studied chemistry at the University of Saint Petersburg from 1880 to 1884 . In 1886 he moved to Warsaw University as a lecturer in physiological chemistry. He obtained his master's degree in chemistry in Saint Petersburg in 1894 and became an associate professor in 1895 and a full professor of pharmacy in 1989 at the University of Dorpat . In 1917 he became a full professor of pharmacy at the Voronezh University and in 1918 he went to the University of Prague, but later went back to Tartu (Dorpat).
In 1901 he produced the first fully synthetic rubber from 2,3-dimethylbutadiene with exposure to light and catalysts such as sodium (he had already synthesized dimethylbutadiene in 1899). He had already started work on this in Saint Petersburg. He also published about it in German scientific journals. His work also influenced the development of methyl rubber in Germany by Fritz Hofmann at Bayer.
He also synthesized alcohols , ethers, and acid chlorides from olefins using zinc chloride as a catalyst. The Kondakov acylation is named after him.
Fonts
- Synthetic rubber, its homologues and analogues, Dorpat 1912
literature
- Winfried Pötsch u. a .: Lexicon of important chemists, Harri Deutsch 1989
Web links
Individual evidence
- ^ I. Franta: Elastomers and Rubber Compounding Materials . Elsevier, 2012, ISBN 978-0-444-60118-6 , pp. 65 ( limited preview in Google Book search).
| personal data | |
|---|---|
| SURNAME | Kondakov, Ivan Lavrentyevich |
| BRIEF DESCRIPTION | Russian chemist |
| DATE OF BIRTH | October 8, 1857 |
| PLACE OF BIRTH | Vilujsk , Yakutia |
| DATE OF DEATH | October 14, 1931 |
| Place of death | Elva at Tartu |