CIESC Journal

• 精细化工 • 上一篇    下一篇

油酸基三聚表面活性剂的合成与性能

宋冰蕾,宋湛谦,商士斌   

  1. 中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏省生物质能源与材料重点实验室,江苏 南京 210042
  • 出版日期:2011-12-05 发布日期:2012-03-02

Synthesis and properties of a trimeric surfactant with oleyl chains

SONG Binglei,SONG Zhanqian,SHANG Shibin   

  1. Institute of Chemical Industry of Forestry Products,CAF,National Engineering Lab. for Biomass Chemical Utilization,Key and Lab. on Forest Chemical Engineering,SFA,Key Lab. of Biomass Energy and Material,Nanjing 210042,Jiangsu,China
  • Online:2011-12-05 Published:2012-03-02

摘要:

以油酸为主要原料,采用微波辅助的方法合成了具有顺式-9-十八烯链和短联接链的三聚季铵盐表面活性剂18:1-2-18:1-2-18:1。该表面活性剂具有极强的聚集能力,临界胶束浓度为3.34 μmol/L。胶束的离子解离度为0.2618:1-2-18:1-2-18:1达到5.2%时即可使溶液凝胶化,表现出良好的黏弹性。

Abstract:

Taking oleic acid as the raw materiala trimeric quaternary ammonium surfactant 18:1-2-18:1-2-18:1 with oleyl chainscis-octadec-9-eneand short spacers was synthesized with the assistance of microwaves. The surfactant shows a strong tendency of aggregation with the critical micelle concentration of 3.34 μmol/L. The micelle ionization degree is 0.26. The solution of 18:1-2-18:1-2-18:1 can be gelated at a surfactant concentration of 5.2%showing a strong viscoelasticity.