Tandem catalysis of Atom Transfer Radical Polymerization of acrylonitrile based on simultaneous use of two copper complexes

The novel approach for conducting ARGET ATRP based on simultaneous use of two copper complexes based on tris[2-(dimethylamino)ethyl]amine (Me 6 TREN), 2,2’-bipyridine (bipy) and tris(2-pyridylmethyl)amine (TPMA) in one pot is proposed. This approach allows to increase the rate of polymerization of a...

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Bibliographic Details
Published in:Journal of polymer research 2021-12, Vol.28 (12), Article 457
Main Authors: Stakhi, Sergey A., Grishin, Dmitry F., Grishin, Ivan D.
Format: Article
Language:English
Subjects:
Catalysis
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Coordination compounds
Copolymers
Copper compounds
Dimethylitaconate
Industrial Chemistry/Chemical Engineering
Molecular weight
Original Paper
Polymer Sciences
Polymerization
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Summary:The novel approach for conducting ARGET ATRP based on simultaneous use of two copper complexes based on tris[2-(dimethylamino)ethyl]amine (Me 6 TREN), 2,2’-bipyridine (bipy) and tris(2-pyridylmethyl)amine (TPMA) in one pot is proposed. This approach allows to increase the rate of polymerization of acrylonitrile and to achieve polymers with high molecular weights. The performed electrochemical studies allowed establishing the possible mechanism of tandem catalysis where the more reducing complex mostly acts as activator determining the high polymerization rate while the second one reversible deactivates polymer chain preserving the control over the process. The influence of initiator nature and the ratio between copper catalysts on the polymerization rate and the molecular weight parameters of the samples was studied. It was shown that the proposed system may be applied for obtaining well-defined copolymers of acrylonitrile with methyl acrylate and dimethyl itaconate via ARGET ATRP mechanism using low copper concentrations.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-021-02821-6