Process Development of Preparing a Novel Gemini Surfactant Bis(Sodium O-Methyl-Nonylphenol Sulfonate) Methane From Nonylphenol

Abstract  With Bis-Nonylphenol Methane and dimethyl carbonate( DMC ) as raw materials, Bis(O-Methyl-Nonylphenol) Methane was prepared at 180°C with K₂CO₃ as catalyst and Bu₄NBr as phase transfer catalyst,both conversion and selectivity were up to 99%. sulfonation with chlorosulfuric acid and neutralization with NaOH aqueous solution, final product was synthesized. Intermediate product and the final product were analysised by IR spectroscopy, ¹HMNR spectrometry and MS spectrometry. Surface activity properties were tested, and compared with ordinary surfactants. The surface tension (γ_cmc) value and the critical micelle concentration (cmc) of the Gemini surfactant aqueous solution were lower, compared with ordinary surfactants, show a good surface activity. It was a newer amphiphiles, newer  structures which can substituted traditional self-assembling components.  At the same time, It has good solubilization capacity, emulsifying capacity and solution stability.