Information om | Engelska ordet POLYADDITION

Exempel på hur man kan använda POLYADDITION i en mening

• The main alternative forms of polymerization are chain polymerization and polyaddition, both of which give addition polymers.
• Otto Bayer discovered the polyaddition for the synthesis of polyurethane in 1937, and three company scientists became Nobel laureates: Carl Bosch and Friedrich Bergius in 1931 "for their contributions to the invention and development of chemical high pressure methods", and Gerhard Domagk in 1939 "for the discovery of the antibacterial effects of prontosil".
• Addition polymers can be formed by chain polymerization, when the polymer is formed by the sequential addition of monomer units to an active site in a chain reaction, or by polyaddition, when the polymer is formed by addition reactions between species of all degrees of polymerization.
• Otto Bayer (4 November 1902 – 1 August 1982) was a German industrial chemist at IG Farben who was head of the research group that in 1937 discovered the polyaddition for the synthesis of polyurethanes out of poly-isocyanate and polyol.
• Marvel made important advances in the development of high temperature polymers, including polybenzimidazoles and ladder polymers, using techniques of polyaddition and cyclopolymerization.
• Subsequently, Carothers divided the synthetic polymers into two broad categories, namely a polycondensate obtained by a polycondensation reaction and an addition polymer obtained by a polyaddition reaction.
• 1975 Otto Bayer – head of the research group at IG Farben that discovered the polyaddition for the synthesis of polyurethanes out of polyisocyanate and polyol.

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