An attempt is made to prove the possibility of synthesizing copolymers of JV-vinylpyrrolidone (VP) and maleic anhydride (MA) with a kinetically regulated structure of the macromolecule. The influence of the charge-transfer complex (CTC), formed from VP and MA, on the dominating tendency toward alternating copolymerization of the two comonomers is studied. The process is carried out on the following model of interaction: a mixture of VP and MA (molar ratio 1:1) is added at a fixed value of mass flow to the reaction system where VP homopolymerization takes place. The copolymerization is studied under adiabatic and isothermal conditions at different mass flow values. The correlation between the parameters of the adiabatic process and the composition and molecular weight of the copolymers obtained in isothermal conditions at one and the same mass flow value is found. It was found that the decrease of the mixture mass flow to a certain value does not affect the copolymers composition and the dynamic of the temperature change in the adiabatic regime. The decrease of mass flow below that threshold leads to increasing the VP content in the product and to enhancing the rate of temperature increase in the adiabatic regime. The analysis of these data shows that it is quite possible to maintain a definite content of MA in the system, at which the dominating tendency toward alternation is disturbed. The results allow us to clarify the role of CTC in the VP/MA copolymerization process and to give a positive answer to the question: Is it possible to synthesize copolymers with a kinetically regulated structure of the macromolecule?
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