Self-assembly properties of ultra-long-chain gemini surfactants bearing multiple amide groups with high performance in fracturing fluid application

摘要

Graphical abstract Display Omitted Highlights ? Synthesis of gemini surfactants having ultra-long hydrophobic chains and cleavable groups. ? Self-assembly properties are determined by surface tension method and cryo-TEM observation. ? NH4Cl refines rheological behaviour of the gemini surfactant solutions. ? C25-amide-C25 with multiple amides is a very promising candidate for fracturing in high temperature formations.