Branched-chain anionic surfactants with same hydrophobic tail architecture: effects of hydrophilic headgroups

IF 1.5 4区工程技术 Q4 CHEMISTRY, APPLIED

Tenside Surfactants Detergents Pub Date : 2025-01-16 DOI:10.1515/tsd-2024-2639

Xuejiao Song, Zexiang Bi, Zimeng Wei, Xu Li, Jinxiang Dong

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Abstract

Abstract The branching of the hydrophobic tail has a significant impact on the performance of branched-chain surfactants, while the influence of hydrophilic headgroups on the surface properties of branched-chain anionic surfactants is rarely reported. In this work, three branched-chain anionic surfactants with the same carbon number and hydrophobic tail architecture but different hydrophilic groups, C 8 sodium branched-chain alkylsulfonate (C 8 SBCAS), C 8 sodium branched-chain alkylphosphonate (C 8 SBCAP), C 8 sodium Guerbet alcohol sulfate (C 8 SGAS) with sulfonate, phosphonate and sulfate groups, respectively, were synthesized. Their surfactant properties, including equilibrium surface tension, dynamic surface tension, wetting ability and foaming property, were thoroughly investigated. The order of the critical micelle concentration ( CMC ) is C 8 SGAS < C 8 SBCAP < C 8 SBCAS, and the equilibrium surface tension ( γ CMC ) follows the order C 8 SBCAP < C 8 SBCAS < C 8 SGAS. These results indicated that increasing the polarity of the hydrophilic headgroups and weakening the charge effect could reduce the hydrophobicity of surfactants, thereby improving their wetting ability and foaming properties. This study provides new insights into the influence of hydrophilic headgroups on the properties of branched-chain anionic surfactants to meet the specific needs of different sectors.

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具有相同疏水尾部结构的支链阴离子表面活性剂：亲水性头基的影响

疏水尾部的支链对支链表面活性剂的性能有显著影响，而亲水头基对支链阴离子表面活性剂表面性能的影响报道甚少。本文合成了碳数相同、尾部结构疏水但亲水基团不同的3种支链阴离子表面活性剂：c8支链烷基磺酸钠（c8 SBCAS）、c8支链烷基膦酸钠（c8 SBCAP）、c8古贝醇硫酸钠（c8 SGAS），分别含有磺酸基、膦酸基和硫酸盐基。研究了它们的表面活性剂性能，包括平衡表面张力、动态表面张力、润湿性能和发泡性能。临界胶束浓度（CMC）顺序为：c8 SGAS <； c8 SBCAP < c8 SBCAS；平衡表面张力（CMC）顺序为：c8 SBCAP <； c8 SBCAS < c8 SGAS。结果表明，增加亲水头基的极性，减弱电荷效应，可以降低表面活性剂的疏水性，从而提高表面活性剂的润湿能力和发泡性能。本研究为研究亲水头基对支链阴离子表面活性剂性能的影响提供了新的见解，以满足不同行业的特定需求。

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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.