Tingli Que, Dan Guan, Hongzhi Shao, Keer Liu, Mingmin Zhang, Xin Su
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Wormlike micelles containing hydrotrope and anionic double-tailed surfactants
This study investigates the solubility, phase behavior, and rheological properties of double-tailed surfactant (DTS-12) systems in the presence of hydrotropes, specifically BTAB and TMAB. The results show that the Krafft temperature of DTS-12 decreased significantly from over 70°C to below 30°C with increasing BTAB concentration, highlighting its superior “salting-in” effect compared to TMAB. The rheological analysis revealed that at a surfactant concentration of 50 mM and a BTAB concentration of 60 mM, the zero-shear viscosity reached approximately 103 mPa · s. Moreover, the DTS-12/BTAB formulation demonstrated good thermal resilience, retaining a viscosity exceeding 103 mPa · s even at a temperature of 90°C. These findings demonstrate the potential of DTS-12/BTAB systems for forming thermally stable and highly tunable wormlike micelles, which could be applied in advanced material development.
期刊介绍：
Journal of Surfactants and Detergents, a journal of the American Oil Chemists’ Society (AOCS) publishes scientific contributions in the surfactants and detergents area. This includes the basic and applied science of petrochemical and oleochemical surfactants, the development and performance of surfactants in all applications, as well as the development and manufacture of detergent ingredients and their formulation into finished products.
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