Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Main paths of thermal decomposition of neopentylpolyol esters

Journal Article · · J. Appl. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:6419525
The aim of this work was therefore to study the mechanism of the thermolysis of neopentylpolyol esters. The authors selected neopentyl laurate, neopentyl glycol dilaurate, and pentaerythritol tetracaproate as model compounds. The reaction was studied in the temperature range of 320-360/sup 0/C. The thermal decomposition of pentaerythritol esters in the temperature range of 320-360/sup 0/C proceeds preferentially by heterolytic splitting of one of the alkyl-oxygen bonds. The molecular decomposition of the pentaerythritol ester at the acyl-oxygen bonds and between the ..cap alpha.. and ..beta.. carbon atoms in the acyl part of the molecule occurs to a much lower extent. The change from an ionic to a radical mechanism of the main thermolysis reaction with decrease in the hydroxyl group content of the neoalcohol forming an ester is because the stabilization of the primary carbocation by an intramolecular solvation by neighboring ester groups becomes less probable.
Research Organization:
Lensovet Leningrad Technological Institute (USSR)
OSTI ID:
6419525
Journal Information:
J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 61:5; ISSN JAPUA
Country of Publication:
United States
Language:
English