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Polyperfluorobutadiene. V. Photopolymerization of Perfluorobutadiene

  • Madeline S. Toy
Conference paper

Abstract

Despite the ease of polymerization of tetrafluoroethylene, the homopolymerization of other perfluoroolefins and perfluorodienes is difficult to accomplish (1). The homopolymerization of hexafluoropropene to high polymer was brought about under extreme conditions, at a temperature of 210°C and using pressures in the range of 3000–5000 atm. (2). A heavy oil was reported by Roberts, when a mixture of bis(trifluoromethyl)peroxide and hexafluoropropene was irradiated by Hg 2537 A° radiation (3). Wall and his coworkers attacked the polymerization resistance problem using Y-ray initiation and high pressure (up to 20,000 atm.). High polymers were obtained from terminally unsaturated perfluoropentadiene (4), perfluorohexadiene, perfluoroheptadiene and perfluorooctadiene (5). The polymerization of perfluorobutadiene was reported by Miller to give high polymer under very high pressure with oxygen and peroxide promotion (6). Recently Toy and her coworkers reported bulk polymerization of perfluorobutadiene under low pressure and temperature in the presence of free radical catalysts to give polyperfluoro-1,2- and 1,4-butadiene (7,8,9). In this paper, the photopolymerizations of perfluorobutadiene by γ-ray initiation, ultraviolet light and in the presence of CF3OOCF3 are described.

Keywords

Infrared Spectrum Benzoyl Peroxide High Polymer Bulk Polymerization Ultraviolet Spectrum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    R. M. Adams and F. A. Bovey, J. Polymer Sci., 9, 481 (1952).CrossRefGoogle Scholar
  2. 2.
    H. S. Elenterio, U. S. Patent 2, 958, 685 (E. I. DuPont de Nemours & Co.), 1960.Google Scholar
  3. 3.
    H. L. Roberts, J. Chem. Soc., 4538 (1964).Google Scholar
  4. 4.
    J. E. Fearn, D. W. Brown and L. A. Wall, J. Polymer Sci., Part A-1, 4, 131 (1966).CrossRefGoogle Scholar
  5. 5.
    L. A. Wall, Am. Chem. Soc. Polymer Preprints, 7 (2), 1112 (1966).Google Scholar
  6. 6.
    W. T. Miller, “Preparation, Properties and Technology of Fluorine and Organic Fluoro Compounds,” ed. by C. Slesser and S. R. Schram, McGraw-Hill, N.Y., 1951, pp. 624-626 and p. 604.Google Scholar
  7. 7.
    M. S. Toy and D. D. Lawson, J. Polymer Sci., Part B, 6, 639 (1968).CrossRefGoogle Scholar
  8. 8.
    M. S. Toy and D. D. Lawson, Am. Chem. Soc, Polymer Preprints, 9 (2), 1671 (1968).Google Scholar
  9. 9.
    M. S. Toy and J. M. Newman, J. Polymer Sci., Part A-1, 6, 2333 (1969).CrossRefGoogle Scholar
  10. 10.
    R. A. Mitsch and E. W. Neuvar, J. Phys. Chem., 70 (2), 546, (1966).CrossRefGoogle Scholar
  11. 11.
    D. G. Weiblen, Fluorine Chemistry, Vol. 2, ed. by J. H. Simons, Academic Press, N.Y., 1954, p. 478.Google Scholar

Copyright information

© Plenum Press, New York 1970

Authors and Affiliations

  • Madeline S. Toy
    • 1
  1. 1.Douglas Advanced Research LaboratoriesMcDonnell Douglas CorporationHuntington BeachUSA

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