Charles Dufraisse

Charles Dufraisse (20 August 1885, in Excideuil – 5 August 1969, in Excideuil) was a French chemist. With Charles Moureu, he conducted pioneer research of autoxidation and antioxidants.

Charles Dufraisse
Charles Moureu and Dufraisse (on the right) in their laboratory in Paris
Born	(1885-08-20)August 20, 1885 Excideuil, France
Died	August 5, 1969(1969-08-05) (aged 83) Excideuil, France
Nationality	French
Scientific career
Fields	Chemistry
Institutions	ESPCI Paris Collège de France

In 1921 he received his doctorate at Paris with the thesis Contribution à l'étude de la stéréoisomérie éthylénique, and served as an associate director in the laboratory of organic chemistry at the Collège de France. In 1927 he was named a professor at the École supérieure de physique et de chimie industrielles de la Ville de Paris, and in 1942 became a professor at the Collège de France. He was cofounder of the Institut français du caoutchouc (French Institute of Rubber).

Selected writings

• Contribution à l'étude de la stéréoisomérie éthylénique, (doctoral thesis, 1921).
• Méfaits et bienfaits de l'oxygène, 1930.
• L'oxydabilité considérée comme test d'état du caoutchouc, 1939.
• Applications de l'oxydabilité : Méthode manométrique : discussion, exemples (with Jean Le Bras, 1939).
• Le Caoutchouc, quelques aspects théoriques, 1942.
• L'état actuel du problème antioxygène, 1946.
  • Writings by Dufraisse that have been published in English:
• "The ultra-rapid testing of rubber : the testing of its oxidizability in one quarter of an hour" (with Jean Le Bras).
• "The negative catalysis of auto-oxidation. Anti-oxygenic activity" (with Charles Moureu).
• "Catalysis and auto-oxidation. Anti-oxygenic and pro-oxygenic activity" (with Charles Moureu).
• "Messel memorial contribution the negative catalysis of auto oxidation. Anti-oxygenic activity" (with Charles Moureu).
• "Aging of rubber and its retardation by the surface application of antioxygens 1. Diffusion process" (with Charles Moureu, Pierre Lotte).