Accession Number:

AD0423856

Title:

THE ROLE OF IONS IN THE RADIOLYSIS OF ORGANIC LIQUIDS.

Descriptive Note:

Progress rept., 1 Mar 62-31 Aug 63,

Corporate Author:

STANFORD RESEARCH INST MENLO PARK CALIF

Personal Author(s):

• Samuel,A. H.
• Golub,M. A.
• Danon,J.

Report Date:

1963-11-01

Pagination or Media Count:

47.0

Abstract:

Irradiation to 3x10 to the 21st power evg of solutions of stannic chloride SnCl4 in toluene at 195 K by 1-Mev electrons gave o- and m- andor p-chlorotoluene yields G, molecules100 ev which were unaffected by changes in temperature and dose and by the presence of ethylene and nitric oxide, but rose with SnCl4 concentration to approach a limiting total value near 0.2. When ethylene was present, Gtotal C9H12 was near 0.01. When CCl4 was substituted for SnCl4, a different product pattern was found. Squalene was irradiated with Co-60 gamma rays at room temperature and with 1-Mev electrons at 243 K. The main radiation -induced effects, with their G-values at room temperature, are loss of unsaturation 4.6, crosslinking 1.35, trans-cis isomerization 0.83, and hydrogen evolution 0.58. Most of the loss of unsaturation is attributed to cyclization it occurs only in the crosslinked fraction. Increased yields on the basis of energy absorbed in the solute were observed for the cis-trans isomerization of squalene and cis- and trans-polyisoprene when these were irradiated in benzene solution. The chlorination of toluene and the cyclization of cross-linked squalene are believed to have ionic intermediates. Author

Descriptors:

• (*ORGANIC COMPOUNDS
• RADIATION CHEMISTRY)
• (*RADIATION CHEMISTRY
• ORGANIC COMPOUNDS)
• (*IONS
• RADIATION CHEMISTRY)
• SOLUTIONS(MIXTURES)
• ORGANIC SOLVENTS
• TIN COMPOUNDS
• CHLORIDES
• GAMMA RAYS
• ELECTRON BEAMS
• MOLECULAR ISOMERISM
• HYDROCARBONS
• ALKENES
• AROMATIC COMPOUNDS
• BENZENE
• POLYMERS
• COPOLYMERIZATION
• NUCLEAR MOLECULAR RESONANCE
• SPECTRA (INFRARED)

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE