Synthesis and surface properties of branched-chain tertiary fatty alcohol sulfate surfactants

IF 1.2 4区工程技术 Q4 CHEMISTRY, APPLIED Tenside Surfactants Detergents Pub Date : 2023-09-28 DOI:10.1515/tsd-2023-2534

Qian Wang, Xu Li, Jinxiang Dong

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Abstract

Abstract In this paper, anionic branched-chain tertiary fatty alcohol sulfate surfactants were synthesized from n -hexene and n -octene using selective olefin dimerization, hydration reaction (hydroxylation), and sulfur trioxide sulfation. The direct hydration reaction of the α-olefin dimer 2-butyl-1-octene with water as a model reaction was explored for the synthesis of branched-chain tertiary fatty alcohols. Two branched-chain tertiary fatty alcohol sulfate surfactants, namely C 12 -SBTAS and C 16 -SBTAS, with different carbon chain lengths, were synthesized by the sulfur trioxide sulfation method. Their structures were confirmed by various analytical techniques, including HPLC, FT-IR, HR-MS, and 1 H NMR. Equilibrium and dynamic surface tension, foaming, wetting, and emulsifying properties were compared with those of Guerbet cetyl alcohol sulfate (C 16 -SGAS). C 12 -SBTAS and C 16 -SBTAS exhibited good surface activity with equilibrium surface tension ( γ CMC ) values of 27.41 mN m −1 and 26.69 mN m −1 , respectively. They also had low foaming and rapid defoaming abilities, as well as good wetting and emulsifying properties, which match the application characteristics of typical branched-chain surfactants.

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支链叔脂肪醇硫酸盐表面活性剂的合成及表面性能

摘要以正己烯和正辛烯为原料，经选择性烯烃二聚化、水化反应(羟基化)和三氧化硫磺化反应合成了阴离子支链硫酸叔脂肪醇表面活性剂。以α-烯烃二聚体2-丁基-1-辛烯与水的直接水化反应为模型反应，研究了支链叔脂肪醇的合成。采用三氧化硫磺化法合成了碳链长度不同的支链叔脂肪醇硫酸盐表面活性剂c12 -SBTAS和c16 -SBTAS。通过HPLC、FT-IR、HR-MS和1h NMR等分析技术对其结构进行了确证。比较了古贝十六醇硫酸盐(c16 -SGAS)的平衡和动态表面张力、发泡、润湿和乳化性能。c12 -SBTAS和c16 -SBTAS表现出良好的表面活性，平衡表面张力(γ CMC)值分别为27.41 mN m−1和26.69 mN m−1。具有低发泡和快速消泡能力，良好的润湿和乳化性能，符合典型支链表面活性剂的应用特点。

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来源期刊

Tenside Surfactants Detergents 工程技术-工程：化工

CiteScore

1.90

自引率

10.00%

发文量

审稿时长

3.8 months

期刊介绍： Tenside Surfactants Detergents offers the most recent results of research and development in all fields of surfactant chemistry, such as: synthesis, analysis, physicochemical properties, new types of surfactants, progress in production processes, application-related problems and environmental behavior. Since 1964 Tenside Surfactants Detergents offers strictly peer-reviewed, high-quality articles by renowned specialists around the world.