PROCESS FOR MAKIN GRAFT COPOLYMERS

Patent · Wed Apr 25 23:00:00 EST 1962

OSTI ID:4791038

Griffin, J D; Chapiro, A

A process is outlined for making graft copolymers from polyethylene. The process comprises the steps of subjecting polyethylene in vacuum to high- energy ionizing radiation for a dose of 0.04 tp 20 Mrep to form active centers thereon, converting the centers into oxygenated sites by contacting the irradiated polyethylene with oxygen within 5 min after irradiation, and contacting the oxygenated polymer with a monomer. The polyethylene preferably has a molecular weight of 15,000 to 60,000, and the monomer can be any vinyl or vinylidene compound capable of polymerization by peroxygen compounds or free radicals to form an addition polymer. (D.L.C.)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-016449
• OSTI ID: 4791038
• Report Number(s): GB 894753
• Country of Publication: United Kingdom
• Language: English

Related Subjects

CHEMISTRY
CONFIGURATION
FREE RADICALS
GAMMA RADIATION
GRAFT POLYMERS
OXYGEN COMPOUNDS
POLYETHYLENES
POLYMERIZATION
POLYMERS
RADIATION DOSES
VACUUM
VINYL RADICALS
X RADIATION