Determination of the monomer reactivity ratios for the copolymerization of 2-methyl-5-vinylpyridine and triethyleneglycol dimethacrylate

Abstract

THE capacity for polymerization of vinyl derivatives of pyridine as a function of their structure was first studied by Bachman and Micucci [1]. Subsequently, a number of authors [2-5] determined the reactivity ratios of 2-vinylpyridine and 4-vinylpyridine in copolymerization with various monomers. The authors assumed that the order of polymerization velocities is connected with the greater activity of vinyl groups in positions 2 and 4 as compared with those in positions 3 and 5. Farberov and Tsailingol'd [6] determined the reactivity ratios for a copolymer of 2-methyl-5-vinylpyridine and buta-l,3-dienc. Ostroverkhov, Vakarchuk, and Sinyavskii [7] have eopolymerized 2-methyl-5-vinylpyridine with styrene and determined the reactivity ratios in copolymerization of the radicals of these monomers. As a result of previous investigations [8, 9], an anion-exchange resin based on a copolymer of 2-methyl-5-vinylpyridine with triethyleneglycol dimethacrylate has been synthesized which exhibited marked absorption properties with respect to phenols from aqueous solution. The object of the present work was to study the composition of the copolymer as a function of the composition of the initial mixture of monomers and to determine the relative activities of the two radicals [10, 11], which would permit an anion-exchanger with optimum absorption properties to be obtained.