Abstract
As an extension of our continuing studies concerned with the elucidation of three-dimensional network formation mechanism in the radical polymerization of multivinyl compounds, this paper deals with the post-polymerization of the precopolymers having pendant allyl groups prepared from the copolymerization of allyl methacrylate (AMA) with methyl methacrylate (MMA) or benzyl methacrylate (BzMA) as the model of prepolymer. Thus we obtained the following results : A remarkable concentration dependence was observed for the post-polymerization of poly (MMA-co-AMA) (Pw= 2600) as a high-molecular-weight precopolymer, whereas for the low-molecular-weight poly (MMA-co-AMA) (Pw= 100) was almost no concentration effect. Moreover, for the post-polymerization of poly (BzMA-co-AMA) (Pw= 3400) the concentration effect was quite reduced compared with poly (MMA-co-AMA). These results are discussed as correlated to the physical interaction among polymer chains.
