Synthesis and Properties of Mono or Double Long‐Chain Alkanolamine Surfactants

Abstract

Two types of N‐substituted long‐chain alkanolamine surfactants were prepared. Firstly, octadecyl glycidyl ether was synthesized from octadecanol and epichlorohydrin. Subsequently, a ring‐opening reaction of the epoxide ring of octadecyl glycidyl ether was performed with monoethanolamine and diethanolamine to synthesize bis(octadecyloxy)‐2‐ hydroxypropylmonoethanolamine (D‐MEA)and octadecyloxy‐2‐hydroxypropyldiethanolamine(M‐DEA) without catalyst at 60 °C, respectively. And their corresponding tertiary amine salts bis(octadecyloxy)‐2‐hydroxypropylmonoethanolamine hydrochloride (D‐MEAS) and octadecyloxy‐2‐hydroxypropyldiethanolamine hydrochloride (M‐DEAS) were attained by neutralization with hydrochloric acid. The study on these four surfactants included their surface active properties, foaming abilities, emulsifying properties, lime‐soap dispersion abilities and wetting abilities. The results show that D‐MEAS possesses the best surface active property and lime‐soap dispersion ability. D‐MEA has better foaming ability and foaming stability. The wetting ability of M‐DEA and the emulsifying property of M‐DEAS are prominent.

Synthesis and Characterization of a Novel Series of Amphiphilic Mercapto‐1,2,4‐Triazole Schiff Base Ligands: Investigation of their Behavior in Hydro‐Organic Solutions

“…The same behavior was also noticed by Y. Zhang et al and N.A. Negm et al with alkanolamine and polytriethanolamine polymers surfactants, respectively [50,53].…”

Thermodynamic and Interfacial Properties of DTABr/CTABr Mixed Surfactant Systems in Ethanolamine/Water Mixtures: A Conductometry Study

“…The effects of different kinds of additives including glycols, hydrazine, adn formamide on the micellization of single surfactants have been widely studied [20][21][22][23]. These solvents are known to have high cohesive energies and considerable hydrogen bonding ability which favor aggregation of surfactant monomers to form micelle.…”

“…Addition of alcohols and amine has been reported to have a drastic effect on the micellization of surfactants resulting in a significant change in the critical micelle concentration [22]. Ethanolamine combines the properties of amine and alcohol; it exhibits the unique capability of undergoing reactions common to both groups [23]. It is therefore worthwhile to consider the effect of an organic molecule that combines the properties of alcohol and amine as a single entity on the mixed micelle formation.…”

Preparation and Characterization of an Anionic Gemini Surfactant for Enhanced Oil Recovery in a Hypersaline Reservoir

“…AGS was designed and prepared using a simple and lowcost method based on the existing research results that high yield could be obtained when the reaction between the epoxy group and alcohol hydroxyl group was catalyzed by Lewis acid (Albarrán-Preza et al, 2016;Kanji and Makoto, 1994;Lathi and Bo, 2007;Tetsuya and Uno, 2002;Zhang et al, 2013), when chlorsulfonic acid had a high sulfonating rate and efficiency (Ge et al, 2012;Wang et al, 2017;Xu et al, 2016;Zhang et al, 2017), and when the alkanol sulfate group was easy to be hydrolyzed under acidic conditions. The scheme of its synthetic route is shown in Fig.…”