Yd. Semchikov, PREFERENTIAL SORPTION OF MONOMERS AND MOLECULAR-WEIGHT EFFECTS IN RADICAL COPOLYMERIZATION, Macromolecular symposia, 111, 1996, pp. 317-328
Specific thermodynamic properties of monomer mixtures as a solvent for
copolymers lead to preferential sorption of one of the monomers by th
e polymer coils and preferential solvation of growing chains. The depe
ndence of the preferential sorption coefficient upon the molecular wei
ght of the copolymers results in the dependence of copolymer compositi
on and monomer reactivity ratios upon the molecular weight of the copo
lymers and in gradient chemical heterogeneity of the copolymers. ''Non
-classical'' copolymerizations can be represented by both terminal and
penultimate models.