RADIATION INDUCED GRAFT COPOLYMERIZATION TO POLY(VINYL ALCOHOL). VI. GRAFTING OF METHYL METHACRYLATE TO PRE-IRRADIATED POLY(VINYL ALCOHOL) FILMS IN THE PRESENCE OF FERROUS IONS

Journal Article · Thu Sep 01 04:00:00 EDT 1960 · Doitai To Hoshasen (Japan) Discontinuedt) (Romania)

OSTI ID:4669425

Sakurada, I; Okada, T; Kugo, E

The grafting of MMA to pre-irradiated PVA films (Co/sup 60/ gamma rays at 0.15 Mr/hr) with the addition of a small amount of iron salts to a solution of the monomer, acetone, and water (14:56:30) with a graft efficiency of 98% at 22 deg C was observed. Ferrous ions were more effective than ferric ions. Experimental data showed that the optimum conditions for grafting were: a ferrous ion concentration in the solution of 1.0 x 10/sup -4/ mol/l: a pH of 3.5 (no grafting occurred in alkaline solutions); and temperatures between 20 approximates 30 deg C. The addition of other reducing agents to the iron redox system only decreased the rate of grafting. (OID)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-033985
• OSTI ID: 4669425
• Journal Information: Doitai To Hoshasen (Japan) Discontinuedt) (Romania), Journal Name: Doitai To Hoshasen (Japan) Discontinuedt) (Romania) Vol. Vol: 3; ISSN DOHOA
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

ACETONE
ACIDITY
ACRYLIC ACID
ALCOHOLS
CATALYSIS
CATIONS
CHEMICAL REACTIONS
CHEMICALS
CHEMISTRY
COBALT 60
EFFICIENCY
FILMS
GAMMA RADIATION
IRON COMPOUNDS
MEASURED VALUES
METHACRYLIC ACID
METHYL RADICALS
ORGANIC COMPOUNDS
OXIDATION
POLYMERIZATION
POLYMERS
POLYVINYLS
QUANTITY RATIO
RADIATION CHEMISTRY
RADIATION DOSES
RADIATION SOURCES
REACTION KINETICS
REDUCTION
SOLUTIONS
SOLVENTS
TEMPERATURE
VINYL RADICALS
WATER