Accession Number : AD0715430

Title :   Thermal Oxidation of Polyolefins.

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,L.

Report Date : DEC 1970

Pagination or Media Count : 28

Abstract : The uncatalyzed autoxidation of films of polyolefins, such as atactic and isotactic polypropylene, and atactic and isotactic poly(butene-1) reported previously by the authors are reviewed in light of their recent work. Reaction temperatures varied from 100 to 150C and oxygen concentrations from 5 to 100% by volume. A general reaction scheme was suggested and kinetic expressions subsequently derived therefrom have been satisfactorily applied to account for experimental results. Linear relationships between a maximum rate and concentration of oxygen for both low and high concentrations were obtained. In the case of the catalyzed autoxidations (Co(III) acetylacetonate) the general reaction scheme was modified to take into account the presence of the catalyst. A correlation between catalytic activities of metal acetylacetonates (Co(III), Mn(III), Cr(III), Fe(III) and Cu(II)) and the oxidation-reduction potentials was established. (Author)

Descriptors :   (*PLASTICS, *OXIDATION), DECOMPOSITION, REACTION KINETICS, CATALYSTS, COBALT COMPOUNDS, CHELATE COMPOUNDS, KETONES, TRANSITION METALS

Subject Categories : Physical Chemistry
      Plastics

Distribution Statement : APPROVED FOR PUBLIC RELEASE