RADIATION INDUCED GRAFT COPOLYMERIZATION TO POLY(VINYL ALCOHOL). IX. THE EFFECTS OF SOLVENT ON THE GRAFTING OF STYRENE TO POLY(VINYL ALCOHOL) FILMS BY GAMMA IRRADIATION

Journal Article · Sat Sep 01 04:00:00 EDT 1962 · Doitai To Hoshasen (Japan) Discontinuedt) (Romania)

OSTI ID:4657670

Sakurada, I; Okada, T; Kugo, E

Test results obtained from PVA film samples (0.2 mm thick, 2 x 0.5 cm/ sup 2/) in methanol, propanol, CCl/sub 4/, acetone, and benzene irradiated by a 1000-C Co/sup 60/ source at the rate of 1.1 x 10/sup 4/ r/hr and in ethanol at 9 x 10/sup 3/ r/hr up to total dosage of 2.5 x 10/sup 5/ r at 30 deg C were tabulated and are discussed. Except in the case with methanol at a higher concentration, little or no accelerating effect on the grafting of styrene to PVA film was observed. This could be attributed by the important role of gel effect played in homopolymerization at a higher solvent concentration. In the case of CCl/sub 4/, the highest accelerating effect on the homopolymerization but low grafting rate were observed. The phenomenon was due to the transfer of grafting chains to the solvent molecules. The solvent with a low chain power is a favorable factor in grafting. (OID)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-033986
• OSTI ID: 4657670
• Journal Information: Doitai To Hoshasen (Japan) Discontinuedt) (Romania), Journal Name: Doitai To Hoshasen (Japan) Discontinuedt) (Romania) Vol. Vol: 4; ISSN DOHOA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ACETONE
ALCOHOLS
BENZENE
CARBON TETRACHLORIDE
CATALYSIS
CHEMICAL REACTIONS
CHEMISTRY
COBALT 60
COLLOIDS
CONFIGURATION
EFFICIENCY
ETHYLENE
FILMS
GAMMA RADIATION
IRRADIATION
METHANOL
MOLECULES
PHENYL RADICALS
POLYMERIZATION
POLYMERS
POLYSTYRENE
POLYVINYLS
PROPANOL
QUANTITY RATIO
RADIATION CHEMISTRY
RADIATION DOSES
RADIATION SOURCES
REACTION KINETICS
SAMPLING
SOLUTIONS
SOLVENTS
TABLES
VINYL RADICALS