MATHEMATICAL-MODELING OF THE MICROSTRUCTU RE OF A VINYL CHLORIDE-MALEIC ANHYDRIDE COPOLYMER IN SOLUTION

An approach is developed that allows the microstructure and reactivity of a vinyl chloride-maleic anhydride copolymer in solution to be eval uated using the results of mathematical modeling of the cooperative re actions of the copolymer with sodium azide. It is demonstrated that ma cromolecules of the copolymer contain four types of monomer units of a nd eight types of the units including enole and dienole furan derivati ves. The chain microstructure depends on the initial concentration of copolymer. A high content of the quasi-aromatic structures in isolated macromolecules is explained by a decrease in the Gibbs energy of the system.