寡甘醇单烷基醚的合成和性能

Synthesis and properties of monoalkyl ethers of oligoethylene glycols

以寡甘醇和卤代烷为原料 ,利用相转移催化 Williamson法合成了 1 2种寡甘醇单烷基醚 ,均获得较高产率。讨论了寡甘醇单醚合成的反应历程 ,并对其物理常数、水溶液的表面张力、起泡性能、临界胶束浓度进行了测试和分析。

Twelve monoalkyl ethers of oligoethylene glycol were synthesized in high yield by phase transfer catalyzed Williamson ether reaction of alkyl halide and oligoethylene glycol.The reaction course and the physical constants the properties of the surfactants,such as surface tension,foam as well as critical micellization concentration in aqueous solution were discussed.