RADIATION-INDUCED POLYMERIZATION OF ACETONE AND HALOGENOACETONE

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

OSTI ID:4784852

Okamura, S; Hayashi, K; Mori, S

A method for obtaining an inexpensive and pure elastic polymer from acetone is described. Carefully purified and dried acetone frozen below its melting point (--95 deg C) was irradiated by Co/sup 60/ gamma rays in vacuo (<10/sup -4/ mm). The unreacted acetone was removed by distillation under reduced pressure. The yield of the polymer was 1 ~0.1%, and the G-value was 30 ~ 500. The polymer was soluble in acetone, chloroform, and CCl/sub 4/, and its stability could be increased slightly by irradiating in the presence of a small amount of a vinyl compound. Observations made on the absorption spectrum suggested that the main chain consisted of a structure of polyether-type group at the end. Successful halogenation was obtained by irradiating a purifled bromoacetone sample at --78 deg C (<10/sup -4/ mm), and a yield of 13% was obtained. Only 0.12% yield was obtained in the case with chloroacetone. The monomers contributed to the thermal stability, graft copolymerization, cros s - linking vulcanization, and dye properties by means of the halogen atom. (OID)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-030460
• OSTI ID: 4784852
• 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: English

Related Subjects

ABSORPTION
ACETONE
ATOMS
BROMINATED HYDROCARBONS
CARBON TETRACHLORIDE
CHEMICAL REACTIONS
CHEMISTRY
CHLOROFORM
COBALT 60
CONFIGURATION
CRYOGENICS
DISTILLATION
DYES
ETHERS
GAMMA SOURCES
GRAFT POLYMERS
HALOGENATED HYDROCARBONS
IRRADIATION
ORGANIC BROMINE COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
ORGANIC SULFUR COMPOUNDS
POLYMERIZATION
POLYMERS
PRESSURE
PRODUCTION
RADIATION CHEMISTRY
SPECTRA
STABILITY
VACUUM
VINYL RADICALS