INTERMOLECULAR INTERACTIONS BETWEEN VINYL -CHLORIDE MALEIC-ANHYDRIDE COPOLYMER AND CARBONYL-CONTAINING SOLVENTS AND DIMETHYL-SULFOXIDE

The studies of the electronic absorption spectra of vinyl chloride-mal eic anhydride copolymer showed that the enol forms of succinic anhydri de cycles, which are the units of microstructural heterogeneity in the system, cause enolization of some carbonyl-containing solvents and DM SO. High-energy ensembles of microstructural heterogeneity are produce d due to the rigidity of the macromolecular framework. These ensembles form charge-transfer complexes with the enol forms of the solvents. T he constants of formation and decomposition of charge-transfer complex es of the copolymer with a number of carbonyl-containing solvents were estimated.