磺基琥珀酸聚氧乙烯辛烷基混合双酯磺酸钠的合成与性能研究

The synthesis and performance of polyoxyethylene and octane diester sufisuccinate sodium

1:以亚硫酸钠为磺化剂合成了磺基琥珀酸聚氧乙烯辛烷基混合双酯钠(ATOESS)。最佳工艺条件为:n(正辛醇):n(顺酐)=1.0:1.2,于95℃单酯化反应4 h,得到琥珀酸辛烷基单酯;酯化产物在n(聚乙二醇200):n(单酯)=2.0:1.0,130℃条件下反应3 h,得到产率为93%的双酯化产物;该产物在n(亚硫酸氢钠):n(双酯)=3.0:1.0,140℃下,反应6 h,得到双酯磺酸钠。产物物性分析表明,所合成的磺基琥珀酸聚氧乙烯辛烷基混合双酯钠(ATOESS)具有较好的表面活性。

In the paper, the polyoxyethylene and octane sufisuccinate sodium was synthesized using sodium bisulfite as sulfonating agent. The octane sueeinate was obtained as follow： n（maleie anhydride）：n（octane aleohol）=1.2：1.0, reaction temperature 95℃ and reaction time 4h. The polyoxyethylene and octane double ester as follow： n（polyglyeol 200）：n（monoester）=2. 0： 1.0,130℃ and reaction time 3h. The polyoxyethylene and octane sufisuccinate sodium was prepared by reacting the polyoxyethylene octane double ester and sodium bisulfite. The optimum reaction conditions were as follow： n（sodium bisulfite）： n（double ester） = 3.0：1.0, reaction temperature 140℃ and reaction time 6h. The result indicated that the sodium octane sufisuecinate was a fine non-ionic surfactant.