@article{LUO2025, 
author = {RuXian LUO and LiLing CHEN},
title = {Ruthenium-catalyzed synthesis of butynediol ether trisiloxane surfactant},
year = {2025},
journal = {Journal of Beijing University of Chemical Technology (Natural Science Edition)},
volume = {52},
number = {1},
pages = {31-38},
keywords = {ruthenium catalyst, butynediol ethoxylate (BEO), trisiloxane, surfactant},
url = {https://www.sciopen.com/article/10.13543/j.bhxbzr.2025.01.004},
doi = {10.13543/j.bhxbzr.2025.01.004},
abstract = {Butylenediol ether trisiloxane (BEOTSS) has been synthesized from butynediol ethoxylate (BEO) and 1,1,1,3,5,5,5-heptamethyltrisiloxane (MDHM) by a hydrosilylation reaction using a ruthenium catalyst. The structure of BEOTSS was characterized by infrared spectroscopy (FT-IR) and nuclear magnetic resonance (1H-NMR) spectroscopy. The effects of varying the reaction temperature, reaction time, raw material ratio and catalyst dosage on the conversion of MDHM were investigated, and the catalytic reaction conditions were optimized by orthogonal tests. The optimum conditions were as follows: a catalyst dosage of 30 mg/kg, an n(BEO):n(MDHM) ratio of 1.05:1, a reaction time of 6.0 h, and a reaction temperature of 100 ℃. Under these conditions, the conversion rate of MDHM could reach 99%. The interfacial properties of BEOTSS were measured. The results show that the surface tension of a 0.1% BEOTSS aqueous solution is 22.5 mN/m at 25 ℃, and the critical micelle concentration (CMC) is 4.9×10-5 mol/L, indicating that BEOTSS can significantly reduce the surface tension of water at low concentration and has excellent surface activity.}
}