Radiation-induced oxidation of polyethylene, ethylene-butene copolymer, and ethylene-propylene copolymer

Journal Article · Wed Sep 01 00:00:00 EDT 1982 · J. Polym. Sci., Polym. Chem. Ed.; (United States)

DOI:https://doi.org/10.1002/pol.1982.170200926· OSTI ID:6595086

Arakawa, K; Seguchi, T; Watanabe, Y; Hayakawa, N

Oxygen consumption and yield of oxidation products during ..gamma..-irradiation were studied on five types of polyethylene (PE), ethylene-butene copolymer (EB), and ethylene-propylene copolymer (EPR) using gas chromatography, mass spectrography, and high-resolution NMR. Samples were irradiated in oxygen under pressure from 0 to 500 torr by /sup 60/Co ..gamma..-rays up to 20 Mrad at 22-25/sup 0/C. In enough oxygen, oxygen consumption and yield of oxidation products are independent of oxygen pressure for low-density PE, EB, and EPR. The G values of oxygen consumption were 14-18.4 for PE, 11.6 for EB at 1 x 10/sup 6/ rad/h, and 8.3 for EPR at 2 x 10/sup 5/ rad/h. The oxidation products determined were carboxylic acid (-CH/sub 2/-CO-OH), H/sub 2/O, CO/sub 2/, and CO. The oxygen consumption and oxidation products for PE were found to increase with increasing crystallinity.

• Research Organization: Japan Atomic Energy Research Inst., Takasaki, Japan
• OSTI ID: 6595086
• Journal Information: J. Polym. Sci., Polym. Chem. Ed.; (United States), Vol. 20:9
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
POLYETHYLENES
CHEMICAL RADIATION EFFECTS
POLYOLEFINS
POLYPROPYLENE
BUTENES
CHEMICAL REACTION KINETICS
COPOLYMERS
DECOMPOSITION
ETHYLENE
EXPERIMENTAL DATA
GAMMA RADIATION
OXIDATION
ALKENES
CHEMICAL REACTIONS
CHEMISTRY
DATA
ELECTROMAGNETIC RADIATION
HYDROCARBONS
INFORMATION
IONIZING RADIATIONS
KINETICS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
REACTION KINETICS
400600* - Radiation Chemistry