| Autor: |
Podvalnaya, Yulia V., Tarasov, Aleksandr E., Grishchuk, Alexander A., Chernyayev, Dmitry A., Badamshina, Elmira R. |
| Zdroj: |
Key Engineering Materials; September 2021, Vol. 899 Issue: 1 p226-231, 6p |
| Abstrakt: |
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. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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