Anionic Copolymerization of Acrylonitrile with Ethyl Acrylate under the Action of the Initiating System of 1,4-Diazabicyclo[2.2.2]Octane – Ethylene Oxide

Abstract:

It was found, studying acrylonitrile copolymerization with ethyl acrylate in dimethyl sulfoxide under the action of anionic initiating system of 1,4-diazabicyclo [2.2.2] octane – ethylene oxide, that the obtained copolymers have a branched structure. An increase in the molar fraction of ethyl acrylate in the reaction medium leads to a decrease in the initial rate of acrylonitrile polymerization. Thermal behavior of copolymer samples was investigated; it was found that ethyl acrylate, being introduced into the polyacrylonitrile structure, both reduces thermal effects related to the reactions taking place during heat treatment of copolymers, and increases the half-width of the heat release peak.

• Periodical: Key Engineering Materials (Volume 899)
• Pages: 226-231
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.899.226
• Online since: September 2021
• Authors: Yulia V. Podvalnaya, Aleksandr E. Tarasov*, Alexander A. Grishchuk, Dmitry A. Chernyayev, Elmira R. Badamshina
• Keywords: Anionic (co) Polymerization, Chain Transfer, Fiber, Modification, Polyacrylonitrile Copolymers

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