Gemini surfactants derived from acetylenic diols, these are high-performance nonionic surfactants characterized by their unique molecular structure with a central triple bond, two hydrophobic groups, and two hydrophilic groups. These Gemini surfactants exhibit excellent surface activity, providing effective wetting and defoaming properties in various applications, including coatings, inks, adhesives and cleaning products, while also offering advantages like low dynamic surface tension and low VOC emissions