Radiation-induced copolymerization of tetrafluoroethylene with ethylene

Journal Article · Sun Jul 01 04:00:00 EDT 1973 · Asahi Garasu Kenkyu Hokoku, v. 23, no. 1, pp. 61-70

OSTI ID:4408331

Yamabe, M; Miyake, H; Ukihashi, H; Tabata, Y

Radiation-induced copolymerization of tetrafluoroethylene with ethylene in solution was investigated by employing various chlorofluorohydrocarbons as solvent. The maximum copolymerization rate was obtained at the mole fraction of monomers in the range of 0.3 to 0.4. The rate was proportional to half or one power of the dose rate depending on the solvents used. The molecular weights of the copolymers were evaluated by a novel method based on activation analysis. The copolymer showed a crystalline structure composed of a repeating unit, (--CH/ sub 2/-- CH/sub 2/--CF/sub 2/ CF/sub 2/--), which was found out by the studies of sequence distribution of each monomer, melting temperature, and x-ray analysis. (auth)

• Research Organization: Asahi Glass Co. Ltd., Tokyo
• NSA Number: NSA-29-002536
• OSTI ID: 4408331
• Journal Information: Asahi Garasu Kenkyu Hokoku, v. 23, no. 1, pp. 61-70, Journal Name: Asahi Garasu Kenkyu Hokoku, v. 23, no. 1, pp. 61-70; ISSN AGKHA
• Country of Publication: Japan
• Language: English

Related Subjects

*ETHYLENE-- CHEMICAL RADIATION EFFECTS
*FLUORINATED ALIPHATIC HYDROCARBONS-- CHEMICAL RADIATION EFFECTS
*ORGANIC FLUORINE COMPOUNDS-- CHEMICAL RADIATION EFFECTS
CHEMICAL REACTION YIELD
COPOLYMERIZATION
CRYSTAL STRUCTURE
GAMMA RADIATION
IRRADIATION
LOW TEMPERATURE
MEDIUM TEMPERATURE
MOLECULAR WEIGHT
N40300* --Chemistry--Radiation Chemistry
ORGANIC POLYMERS
ORGANIC SOLVENTS
RADIATION CHEMISTRY
SOLUTIONS
TEMPERATURE DEPENDENCE