Accession Number : AD0717954

Title :   Effect of Concentration of Atactic Polypropylene on its Rate of Autoxidation.

Descriptive Note : Technical rept.,

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

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

Report Date : JAN 1971

Pagination or Media Count : 19

Abstract : A general scheme previously reported for the autoxidation of polyolefins is further substantiated by results obtained for the uncatalyzed and catalyzed autoxidation of various concentrations of atactic polypropylene (APP) (by admixture with polyisobutylene) under various experimental conditions. Thus, rates of maximum carbonyl formation were measured as a function of APP concentration at 120C, oxygen concentrations ranging from 0.5 - 100% by volume and cobaltic acetylacetonate catalyst concentrations (3 and 17) x 0.0000001 mole/7.5 mg sample. Good agreement was found between experimentally observed and theoretical dependencies of the maximum carbonyl formation rate on APP concentration derived from the combined reaction scheme. (Author)

Descriptors :   (*POLYMERS, *OXIDATION), AIR, REACTION KINETICS, CATALYSTS, KETONES, INFRARED SPECTROSCOPY

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE