Propagation and Termination Coefficients for Vinyl Acetate Photopolymerization

MOST vinyl derivatives polymerize to macro-molecules by means of the well-recognized chain mechanism in which the monomeric molecules are activated thermally, by catalysts or by radiation. This step is followed by the addition of molecules of monomer, the so-called propagation step, and finally the activity may be removed by a variety of ways leading to the termination of growth of the polymer. In many such reactions termination of growth occurs by mutual reaction between the two active polymers.