Karl Ziegler

Karl Ziegler
Karl Ziegler
Born	Karl Waldemar Ziegler 26 November 1898 Helsa near Kassel, German Empire
Died	12 August 1973(1973-08-12) (aged 74) Mülheim, West Germany
Nationality	German
Alma mater	University of Marburg
Known for	Ziegler–Natta catalyst Ziegler process Wohl–Ziegler bromination Thorpe–Ziegler reaction Organoaluminium chemistry Organolithium reagent
Awards	Liebig Medal (1935) War Merit Cross 2nd Class (1940) Werner von Siemens Ring (1961) Nobel Prize for Chemistry (1963)
Scientific career
Fields	Organic chemistry
Institutions	Goethe University Frankfurt University of Heidelberg University of Halle-Saale Max Planck Institute für Kohlenforschung University of Chicago
Doctoral advisor	Karl von Auwers

Karl Waldemar Ziegler (German: [kaːʁl ˈvaldəˌmaʁ ˈt͡siːɡlɐ]; 26 November 1898 – 12 August 1973) was a German chemist who won the Nobel Prize in Chemistry in 1963, with Giulio Natta, for work on polymers. The Nobel Committee recognized his "excellent work on organometallic compounds [which]...led to new polymerization reactions and ... paved the way for new and highly useful industrial processes".^[1] He is also known for his work involving free-radicals, many-membered rings, and organometallic compounds, as well as the development of Ziegler–Natta catalyst. One of many awards Ziegler received was the Werner von Siemens Ring in 1960 jointly with Otto Bayer and Walter Reppe, for expanding the scientific knowledge of and the technical development of new synthetic materials.^[2]