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Overall rate of alternating copolymerization of vinyl acetate with maleic anhydride in methyl ethyl ketone

Relative reactivity of the complex and free monomers

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Summary

The initial rate of radical copolymerization of vinyl acetate(D) and maleic anhydride(A) was measured dilatometrically in methyl ethyl ketone at 50°C. The rate was found to be maximum at the feed maleic anhydride mole fraction of 0.40,0.44 and 0.47 when the total monomer concentration was 0.75 M.1.50 M and 2.25 M, respectively. Participation of both free monomers and the complex was considered. Georgiev and Zubov's method gave α=kAD/kDA=0.24, βA=kAC/kAC=35,βD=kDC/kDA =2.2 and kAC/kDC=3.9. The equilibrium constant of donor-acceptor complexation between vinyl acetate and maleic anhydride was determined to be 0.030 in acetonitrile at 27°C.

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Authors and Affiliations

  1. Department of Chemistry, University of New England, 2351, Armidale, N.S.W., Australia

    Kiyohisa Fujimori & Anthony S. Brown

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  1. Kiyohisa Fujimori
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  2. Anthony S. Brown
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Fujimori, K., Brown, A.S. Overall rate of alternating copolymerization of vinyl acetate with maleic anhydride in methyl ethyl ketone. Polymer Bulletin 15, 223–226 (1986). https://doi.org/10.1007/BF00255066

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