THE ROLE OF THE CHAIN STRUCTURE OF POLYAM IDAMINE MACROMER IN THE PROCESSES OF RADICAL COPOLYMERIZATION

The reactions of radical copolymerization of the polyamidamine macrome r (PAAM) with a number of water-soluble monomers were studied. The beh avior of the macromer in these processes is determined by the relative contribution of two main factors: the reactivity of the terminal poly merizable group of this macromer and its chain structure. The influenc e of the first factor predominates in the reactions of copolymerizatio n of PAAM with acrylamide and acrylic acid (AA) at the molar ratio of AA to macromer < 2.8 (pH 4.5) and at all the reagent ratios in the pH range from 1.6 to 6.0. The role of the chain structure of the macromer appears to be the determining factor in the radical polymerization of AA in the presence of this macromer (1.6 > pH > 6.0), which proceeds by the mechanism of the matrix polymerization. PAAM plays the role of a matrix in this system.