有机硅琥珀酸酯表面活性剂的合成与表征

Synthesis and characterization of silicone succinate surfactant

以醇胺硅油(PAPS)和马来酸酐(MA)为原料,在对甲苯磺酸(PTSA)的催化作用下,通过开环反应合成了一种新型有机硅琥珀酸酯(PMPS)表面活性剂。通过单因素实验优化出PMPS合成条件:原料n(MA)∶n(PAPS)=1.00∶0.31,反应温度90℃,w(PTSA)=0.6%(以PAPS质量计),反应时间4.5 h。通过综合热分析测试了PMPS的热分解温度Tg为192.8℃,测定了PMPS的临界胶束浓度CMC为0.12 g/L。

An anionic silicone surfactant （PMPS） is synthesized by ring-opening reaction using polyether and alcohol amine modified polysilosane （ PAPS ） with maleic anhydride as the raw materials, and p-toluenesulfonic acid is used as the catalyst. The appropriate reaction conditions are optimized by the single factor experiment for the PMPS：the reaction molar ratio of n（MA） ： n（PAPS） = 1.00： 0. 31 ,the reaction temperature of 90℃ ,the amount of catalyst of 0.6 wt% （the percentage of PAPS quality）, and the reaction time of 4. 5 hours, The molecular structure of the raw materials and PMPS are characterized and analyzed by FTIR,^13 C-NMR and ^1H-NMR; the thermal properties of PMPS is characterized and analyzed by TGA,the thermal decomposition temperature is 192. 8℃ ,and the critical micelle is 0. 12 g/L.