Accession Number : AD0681008

Title :   ESTIMATION OF RATE CONSTANTS DURING POLYPROPYLENE AUTOXIDATION.

Descriptive Note : Technical rept.,

Corporate Author : STEVENS INST OF TECH HOBOKEN N J DEPT OF CHEMISTRY AND CHEMICAL ENGINEERING

Personal Author(s) : Reich,Leo ; Stivala,S. S.

Report Date : 27 JUN 1968

Pagination or Media Count : 13

Abstract : Recently the rate constants for the autoxidation of isotactic polypropylene based upon a postulated relatively simple scheme were calculated. Electron spin resonance, volumetric and chemical techniques were employed. This paper demonstrates that similar values of these rate constants could also be calculated from a more general scheme. From this general scheme, expressions were derived which involved the rate constants of interest and other constants which had been previously calculated from experimental data based upon the use of infrared absorption techniques. The values of the calculated rate constants at various temperatures agreed well with those reported earlier where comparison was possible. (Author)

Descriptors :   (*POLYETHYLENE PLASTICS, OXIDATION), REACTION KINETICS, FREE RADICALS, OXYGEN, HYDROPEROXIDES

Subject Categories : Physical Chemistry
      Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE