Abstract
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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