A Novel Cationic Polymer Surfactant for Regulation of the Rheological and Biocidal Properties of the Water-Based Drilling Muds
Abdiyev K. Marić M. Orynbaev B. Zhursumbaeva M. Seitkaliyeva N. Toktarbay Z.
January 2023MDPI
Polymers
2023#15Issue 2
The copolymer of N,N-diallyl-N,N-dimethylammonium chloride and N-[3-(Dimethylamino)propyl]methacrylamide (DADMAC–DMAPMA) was synthesized by radical polymerization reaction in an aqueous solution in the presence of the initiator ammonium persulfate (NH4)2S2O8. The molar compositions of the synthesized copolymers were determined using FTIR and 1H NMR-spectroscopy, elemental analysis, and conductometric titration. It was found that in the radical copolymerization reaction, the DMAPMA monomer was more active than the DADMAC monomer; for this reason, the resulting copolymers were always enriched in the DMAPMA monomers. The study of the influence of the DADMAC–DMAPMA copolymer on structure-formation in the bentonite suspension showed that this copolymer significantly increased the static shear stress (SSS) of the system. In this case, the structure-forming properties of the copolymer depended on the pH of the medium. The lower the pH level, the better the structure-formation was in the suspension in the presence of the copolymer. The study of antibacterial activity showed that the DADMAC–DMAPMA copolymer had a biocidal effect against sulfate-reducing bacteria (CRB) at a concentration of not less than 0.05 wt.% and can be used to inhibit the growth of this bacteria.
antibacterial activity , biocidal polymers , copolymer , rheology , structure-formation , sulfate-reducing bacteria
Text of the article Перейти на текст статьи
Department of Chemical Processes and Industrial Ecology, Satbayev University, 22 Satbayev Str., Almaty, 050013, Kazakhstan
Department of Chemical Engineering, McGill University, 3610 University Str., Montreal, H3A 0C5, QC, Canada
Renewable Energy Systems and Material Science Laboratory, National Laboratory Astana (NLA), Nazarbayev University, 53 Kabanbay Batyr, Astana, 010000, Kazakhstan
Department of Chemical Processes and Industrial Ecology
Department of Chemical Engineering
Renewable Energy Systems and Material Science Laboratory
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026