Anionic cocogem surfactants containing propyl-2-ol groups: Synthesis, surface properties and antibacterial activity against SRB bacteria

Q1 Earth and Planetary Sciences

Egyptian Journal of Petroleum Pub Date : 2023-03-01 DOI:10.1016/j.ejpe.2022.12.001

Ravan A. Rahimov , Gulnara A. Ahmadova , Aygun M. Isayeva , Inara V. Rustamova , Durna B. Agamaliyeva , Fedor I. Zubkov

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引用次数: 0

Abstract

Cocogem surfactants are synthesized based on the neutralization reaction of higher monocarboxylic acids (octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic acid, heptadecanoic acid, octadecanoic acid) and 2:1 mol of N,N'-bis(propyl-2-ol)ethylenediamine). Krafft temperatures of these surfactants and colloidal chemical properties of their aqueous solutions were determined by using tensiometric and conductometric measurements. Surface activity parameters of cocogem surfactants, critical micelle concentration (CMC), counter-ion binding degree (β), the surface tension reduction effectiveness (π_CMC), excess concentration of surface (Γ_max), as well as area per molecule at the interface (A_min), Gibbs free energy (ΔG_ad and ΔG_mic) values of adsorption and micellar formation processes are calculated. The size of the aggregates formed by anionic cocogem surfactants in an aqueous solution was determined by the DLS method. It was defined that cocogem surfactants have antibacterial properties against SRB, which is considered to be the most dangerous for the oil industry.

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含丙基-2-醇的阴离子椰子表面活性剂的合成、表面性能及对SRB细菌的抗菌活性

以较高的单羧酸(辛酸、壬酸、癸酸、十一酸、十二酸、十四酸、十六酸、十七酸、十八酸)和2:1 mol N,N′-二(丙基-2-醇)乙二胺为中和剂，合成了椰脂表面活性剂。这些表面活性剂的克拉夫特温度及其水溶液的胶体化学性质通过张力和电导测量测定。计算了椰壳表面活性剂的表面活性参数、临界胶束浓度(CMC)、反离子结合度(β)、表面张力还原效率(πCMC)、表面过量浓度(Γmax)以及吸附和胶束形成过程的界面面积(Amin)、吉布斯自由能(ΔGad和ΔGmic)值。用DLS法测定了阴离子椰壳表面活性剂在水溶液中形成聚集体的大小。研究发现，椰子表面活性剂对石油工业中最危险的SRB具有抗菌作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Egyptian Journal of Petroleum Earth and Planetary Sciences-Geochemistry and Petrology

CiteScore

7.70

自引率

0.00%

发文量

审稿时长

84 days

期刊介绍： Egyptian Journal of Petroleum is addressed to the fields of crude oil, natural gas, energy and related subjects. Its objective is to serve as a forum for research and development covering the following areas: • Sedimentation and petroleum exploration. • Production. • Analysis and testing. • Chemistry and technology of petroleum and natural gas. • Refining and processing. • Catalysis. • Applications and petrochemicals. It also publishes original research papers and reviews in areas relating to synthetic fuels and lubricants - pollution - corrosion - alternate sources of energy - gasification, liquefaction and geology of coal - tar sands and oil shale - biomass as a source of renewable energy. To meet with these requirements the Egyptian Journal of Petroleum welcomes manuscripts and review papers reporting on the state-of-the-art in the aforementioned topics. The Egyptian Journal of Petroleum is also willing to publish the proceedings of petroleum and energy related conferences in a single volume form.