Radiolysis of polyethylene at the ultrahigh dose rates produced pulsed high-current electron accelerators

Journal Article · Wed Jan 01 04:00:00 EST 1986 · High Energy Chem. (Engl. Transl.); (United States)

OSTI ID:5696967

Ivanchenko, V K; Il'icheva, Z F; Margolin, D M; Slovokhotova, N A; Sukhov, F F

The authors use IR absorption to examine the accumulation and removal of double bonds in low-density polyethylene, as well as the cross linking produced by a beam from a pulsed high-current electron accelerator. The irradiation was performed in air at 300 degrees K at dose rates of 10/sup 4/ and 10/sup 12/ Gy/sec. There are changes of 30-50% in the yields of trans-vinylene, vinyl, and vinylidene bonds and a reduction in the cross-linking yield at the higher dose rate. The authors assume that this is due to competition between intermolecular radical reactions under conditions of high concentration. Mechanisms for the radiation-chemical reactions are proposed.

• Research Organization: L.Y. Karpov Physical Chemistry Research Institute
• OSTI ID: 5696967
• Journal Information: High Energy Chem. (Engl. Transl.); (United States), Journal Name: High Energy Chem. (Engl. Transl.); (United States) Vol. 19:4; ISSN HIECA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
ACCELERATORS
ALKYL RADICALS
BEAMS
CHEMICAL BONDS
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMICAL REACTION YIELD
CHEMICAL REACTIONS
CHEMISTRY
CROSS-LINKING
DECOMPOSITION
DOSE RATES
ELECTRON BEAMS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
INFRARED SPECTRA
IRRADIATION
KINETICS
LEPTON BEAMS
LEPTONS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PARTICLE BEAMS
POLYETHYLENES
POLYMERIZATION
POLYMERS
POLYOLEFINS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADICALS
RADIOLYSIS
REACTION KINETICS
SPECTRA
VINYL RADICALS
VINYLIDENE RADICALS
YIELDS