Stabilization of gamma-irradiated poly(vinyl chloride) by epoxy compounds. II. Production of hydroperoxides in gamma-irradiated PVC-stabilizer mixtures

Journal Article · Sat Jan 01 04:00:00 EST 1983 · J. Appl. Polym. Sci.; (United States)

DOI:https://doi.org/10.1002/app.1983.070280207· OSTI ID:5999214

The concentration of hydroperoxides,produced in the process of radiolysis, was studied in ..gamma..-irradiated PVC samples with 4% admixture of four epoxy stabilizers: diglycidyl ether of 2.2-bis(4-hydroxy-3-methyl phenyl)propane (I), styrene oxide (1,2-epoxy ethyl benzene) (IV), epoxidized ricinus oil (VI), and epoxidized soybean oil (Drapex 6.8) (VII). The results indicate that the process of radiation oxidation occurs in two stages. Only the stabilizers with benzene ring demonstrate the antioxidative action. The stabilizers VI and VII do not act as the antioxidants, and, moreover, as a consequence of their plasticizing properties, they facilitate the penetration of the oxygen to polymer. The epoxy groups have no influence upon the oxidation process, in the case of compounds VI and VII.

• Research Organization: Nicholas Copernicus Univ., Torun, Poland
• OSTI ID: 5999214
• Journal Information: J. Appl. Polym. Sci.; (United States), Journal Name: J. Appl. Polym. Sci.; (United States) Vol. 28:2; ISSN JAPNA
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600* -- Radiation Chemistry
CHEMICAL PREPARATION
CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION KINETICS
CHEMISTRY
CHLORINATED ALIPHATIC HYDROCARBONS
ELECTROMAGNETIC RADIATION
EPOXIDES
GAMMA RADIATION
HALOGENATED ALIPHATIC HYDROCARBONS
HYDROXY COMPOUNDS
IONIZING RADIATIONS
KINETICS
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
ORGANIC POLYMERS
OXYGEN COMPOUNDS
PEROXIDES
POLYMERS
POLYVINYLS
PVC
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
REACTION KINETICS
STABILIZATION
SYNTHESIS