Accession Number : AD0778682

Title :   The Role of Halogens in the Plasma Polymerization of Hydrocarbons.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV BERKELEY DEPT OF CHEMICAL ENGINEERING

Personal Author(s) : Kobayashi,H. ; Shen,M. ; Bell,A. T.

Report Date : 01 APR 1974

Pagination or Media Count : 34

Abstract : Vinyl chloride, vinyl fluoride and tetrafluoroethylene were polymerized in a radiofrequency electric glow discharge. It was found that when compared with the unhalogenated simple hydrocarbons, the rates of polymer deposition are in the order of vinyl chloride, acetylene, tetrafluoroethylene, vinyl fluoride, ethylene. This observation can be rationalized by considering the ease with which free radical and unsaturated species can be formed in the plasma. Infrared spectra and structure are compared after plasma and conventional polymerization. The halogenated compounds appear to act as a gas phase catalyst for the plasma polymerization of hydrocarbons. (Modified author abstract)

Descriptors :   *Polymerization, *Halocarbon plastics, *Halogenated hydrocarbons, Ethylene, Glow discharges, Vinyl plastics, Reaction kinetics, Tetrafluoroethylene resins, Free radicals, Chlorine compounds, Fluorine compounds, Catalysis, Plasmas(Physics), Gas ionization

Subject Categories : Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE