聚醚改性氟硅表面活性剂的合成与溶液性质研究

通过阴离子开环聚合和硅氢加成反应得到聚醚改性氟硅表面活性剂和聚醚改性硅氧烷表面活性剂;并用核磁和红外来表征其结构。对聚醚改性有机硅表面活性剂和氟硅氧烷表面活性剂以及全氟表面活性剂进行溶液性质的研究发现：全氟表面活性剂的最小表面张力最低,聚醚改性氟硅表面活性剂的最小表面张力比聚醚改性的硅氧烷要高;对于相同的亲水链段和疏水链段聚醚改性的氟硅氧烷,其临界胶束浓度（CMC）比聚醚改性硅氧烷小;聚醚改性硅氧烷亲水链段的长度增加,CMC减少;而聚醚改性氟硅氧烷的疏水链段长度增加,CMC增加。

Research on Synthesis and Solution Properties of Polyether Modified Fluorosilicone Surfactant

This research obtains polyether modified fluorosilicone surfactant and polyether modified siloxane surfactant through anion ring opening polymerization and hydrosilylation reaction and characterizes their structure through nuclear magnetism and infrared.The research on solution properties of polyether modified organosilicone surfactant,fluorosilicone surfactant and perfluoro surfactant finds that perfluoro surfactant has the lowest minimum surface tension and polyether modified fluorosilicone surfactant has a higher minimum surface tension than polyether modified siloxane;for the same polyether modified fluorosilicone in hydrophilic chain and hydrophobic chain segments,its critical micelle concentration（CMC）is lower than that of polyether modified siloxane;CMC decreases with the increase of length of hydrophilic chain segment of polyether modified siloxane;CMC increases with the increase of length of hydrophobic chain segment of polyether modified fluorosilicone.