Graft Copolymerization of Acrylonitrile on Pre-irradiated Polyethylene in the Swelling System

Journal Article · Tue Jan 01 04:00:00 EST 1963 · Kogyo Kagaku Zasshi

DOI:https://doi.org/10.1246/nikkashi1898.66.6_850· OSTI ID:4118291

Watanabe, Tsutomu; Ito, Isamu

When graft copolymerization of acrylonitrile on preirradiated polyethylene was carried out in dimethylformamide, the degree of grafting obtained was very low. The total activation energy of grafting was 9.8 kcal over a wide temperature range, from 80 to 140 deg C. No diminution of the crystallinity of grafted polyethylene was observed in the x-ray diffraction pattern. The content of grafted acrylonitrile determined by nitrogen analysis was different from that calculated from the weight increment. As the degree of grafting increased, the solubility of grafted polyethylene in xylene at 70 deg C decreased and the softening point increased. The effect of dimethylformamide on the kinetics of grafting and the relation between solubility and frequency of grafting of these graft copolymers were discussed.

• Research Organization: Sumitomo Bakelite Co., Ltd., Yokohama, Japan
• Sponsoring Organization: USDOE
• NSA Number: NSA-18-012229
• OSTI ID: 4118291
• Journal Information: Kogyo Kagaku Zasshi, Journal Name: Kogyo Kagaku Zasshi Journal Issue: 6 Vol. 66; ISSN 0023-2734
• Country of Publication: Country unknown/Code not available
• Language: Japanese

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
ACRYLIC ACID
AMIDES
CHEMICAL REACTIONS
CONFIGURATION
CRYSTALS
CYANIDES
DIAGRAMS
DIFFRACTION
EFFICIENCY
ENERGY LEVELS
EXCITATION
FORMIC ACID
LATTICES
METHYL RADICALS
MIXING
MOLECULES
NITRILES
NITROGEN
OPERATION
POLYETHYLENES
POLYMERIZATION
QUANTITATIVE ANALYSIS
QUANTITY RATIO
RADIATION CHEMISTRY
REACTION KINETICS
SAMPLING
SOLUBILITY
SOLUTIONS
SOLVENTS
TEMPERATURE
THERMODYNAMICS
VARIATIONS
WEIGHT
X RADIATION
XYLENE