摘要
采用非外加相转移催化剂反应的新方法合成了磺基琥珀酸脂肪醇聚氧乙烯醚 ( 3)基己基混合双酯钠(AETCSS)。最佳工艺条件为 :脂肪醇聚氧乙烯醚 ( 3) /顺酐 (摩尔比 ) =1∶1.10 ,于 90℃单酯化反应 2 .5h ,得到产率为 10 0 .1%的单酯化产物 ;单酯化产物在己醇 /顺酐 (摩尔比 ) =2 .0∶1.0 ,14 0℃条件下反应 2 .0h ,得到产率为 94 .9%的双酯化产物 ;该产物在亚硫酸氢钠 /顺酐 (摩尔比 ) =1.0 5∶1,加热介质温度为 130℃条件下磺化反应 2 .2 5h。测得产物的表面张力、临界胶束浓度、乳化率、渗透率、耐硬水性能分别为 32 .0× 10 -3 N/m ,7.9× 10 -5mol/L ,2 .5min ,6 .2s和 35min。AETCSS与磺基琥珀酸双己酯钠盐 (DHSS)和脂肪醇聚氧乙烯醚 ( 3)磺基琥珀酸单酯二钠盐 (AESS)相比 ,通过在DHSS中引入乙氧基 ,乳化力和耐硬水性能均得到了改善 。
Sodium hexyl alkyl polyoxyethyl(3) sulfosuccinate(AETCSS) was synthesied in unclosed system and without extra phase transfer catlyst. The optimal process conditions were as follows: mono esterfication 90 ℃, 2.5 h, molar ratio of alkyl polyoxyethene(3) to maleic anhydride 1∶1.1 and the yield of reached 100.1%; diesterfication 140 ℃, 2 h, molar ratio of hexanol to maleic anhydride 2∶1 and the yield was 94.9%; sulfonation, heating medium temperature 130 ℃, 2.25 h, molar ratio of sodium hydrosulfite to maleic anhydride 1.05∶1. The AETCSS property tests showed that surface tension is 32.0×10 -3 N/m, CMC is 7.9×10 -5 mol/L, emulsifying power is 2.5 min, permeability is 6.2 s, and hard water resistance is 35 min. Compared with the traditional sulfactant sodium dihexyl sulfosuccinate (DHSS) and disodium alkyl polyoxyethyl(3) sulfosuccinate(AESS), the emulsifiying power and permeability were improved, especially the hard water resistance has been notably improved.
出处
《精细石油化工》
CAS
CSCD
北大核心
2003年第5期23-26,共4页
Speciality Petrochemicals
