RADIATION-INDUCED IONIC POLYMERIZATION AT LOW TEMPERATURE

Journal Article · Fri Sep 01 04:00:00 EDT 1961 · J. Polymer Sci.

DOI:https://doi.org/10.1002/pol.1961.1205415914· OSTI ID:4835261

Tsuda, Y

The copolymerization, by means of ionizing radiation, of acrylonitrile with styrene or methyl methacrylate was investigated at -78 deg C in bulk and in various solvents. The copolymerization proceeds by a cationic mechanism in methylene chloride solution, by a free radical mechanism in bulk, and by both an anionic mechanism and a free radical mechanism in dimethyl formamide, diethylamine, toluene, and ethyl bromide solutions. The rate of anionic polymerization of acrylonitrile increases with dilution of monomer. The cationic polymerization in methylene chloride solution was shown to be caused by the catalytic action of hydrogen chloride which is formed from the irradiation of chlorinated hydrocarbon. It was concluded that the main factor in the induction of an anionic polymerization of acrylonitrile is the large reactivity of the monomer in anionic polymerization. (auth)

• Research Organization: Toyo Rayon Co., Ltd., Otsu, Japan
• NSA Number: NSA-15-032202
• OSTI ID: 4835261
• Journal Information: J. Polymer Sci., Journal Name: J. Polymer Sci. Vol. Vol: 54
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACRYLIC ACID
AMIDES
AMINES
ANIONS
CATALYSIS
CHEMISTRY
CHLORIDES
CHLORINATION
CYANIDES
FORMIC ACID
FREE RADICALS
HYDROCARBONS
HYDROGEN CHLORIDES
INDUCTION
IRRADIATION
LOW TEMPERATURE
METHACRYLIC ACID
METHYL RADICALS
METHYLENE RADICALS
NITRILES
NITROGEN COMPOUNDS
ORGANIC CHLORINE COMPOUNDS
POLYMERIZATION
RADIATIONS
REACTION KINETICS
SOLVENTS
STYRENE
TOLUENE