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Radiation-induced copolymerizations of perfluorovinyl acetic acid and its methyl ester with. cap alpha. -olefin. [Gamma radiation]

Journal Article · · J. Polym. Sci., Polym. Chem. Ed.; (United States)
Homopolymerizations and copolymerizations of perfluorovinyl acetic acid (FVA) and its methyl ester (MFVA) were carried out by ..gamma.. radiation at a temperature of 25/sup 0/C, a dose rate of 1 x 10/sup 6/ rad/hr, and FVA/..cap alpha..-olefin and MFVA/..cap alpha..-olefin ratios of 10/90-90/10 in the monomer mixture. FVA and MFVA gave small quantities of brown and greasy low-molecular-weight homopolymers. The polymerization rates of both FVA and MFVA were extremely small, as shown by the maximum G value of monomer consumption of 12. FVA and MFVA reacted with ..cap alpha..-olefin to form waxlike copolymers. The copolymerization rates of both FVA and MFVA with ..cap alpha..-olefin were remarkably larger than those of the homopolymerizations, particularly with ethylene. The polymer compositions of FVA/ethylene or MFVA/ethylene were nearly 1/2 over a wide range of the monomer compositions. The Mayo-Lewis method gave negative r/sub 1/ (FVA) and r/sub 1/(MFVA). The polymer composition curves could be well interpreted by introducing the penultimate model.
Research Organization:
Takasaki Radiation Chemistry Research Establishment, Gunma, Japan
OSTI ID:
6454758
Journal Information:
J. Polym. Sci., Polym. Chem. Ed.; (United States), Journal Name: J. Polym. Sci., Polym. Chem. Ed.; (United States) Vol. 19:6; ISSN JPLCA
Country of Publication:
United States
Language:
English