Hermann Josef Schnell
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Hermann Schnell ( 16. September March 1916 – 7 September 1999) was a German organic chemist who developed the first commercial
polycarbonate Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent. They are easily work ...
, Makrolon. Hermann Schnell studied chemistry at the
University of Freiberg The Technische Universität Bergakademie Freiberg (abbreviation: TU Bergakademie Freiberg, TUBAF) is a public university of technology with currently 3655 students in the city of Freiberg, Saxony, Germany. Its focus is on exploration, mining & e ...
. His supervisor was
Hermann Staudinger Hermann Staudinger (; 23 March 1881 – 8 September 1965) was a German organic chemist who demonstrated the existence of macromolecules, which he characterized as polymers. For this work he received the 1953 Nobel Prize in Chemistry. He is also ...
a well-known polymer chemist. After his phd he worked in the research laboratory of the Bayer AG in
Uerdingen Uerdingen () is a district of the city of Krefeld, Germany, with a population of 17,888 (2019). Originally a separate city in its own right, Uerdingen merged with the city of Krefeld in 1929. Today, Uerdingen is best known for a local distillery ...
, starting in 1946. In 1953 he developed the synthesis of
polycarbonate Polycarbonates (PC) are a group of thermoplastic polymers containing carbonate groups in their chemical structures. Polycarbonates used in engineering are strong, tough materials, and some grades are optically transparent. They are easily work ...
s by reacting
phosgene Phosgene is the organic chemical compound with the formula COCl2. It is a toxic, colorless gas; in low concentrations, its musty odor resembles that of freshly cut hay or grass. Phosgene is a valued and important industrial building block, espe ...
with
bisphenol A Bisphenol A (BPA) is a chemical compound primarily used in the manufacturing of various plastics. It is a colourless solid which is soluble in most common organic solvents, but has very poor solubility in water. BPA is produced on an industrial s ...
. This material marketed as Makrolon was a commercial success.


References

* {{DEFAULTSORT:Schnell, Hermann 1916 births 1999 deaths Academic staff of the University of Freiburg 20th-century German chemists Organic chemists Polymer scientists and engineers