【摘要】 以葡萄糖为原料,分别与正辛醇、异辛醇和仲辛醇通过直接糖苷化反应合成了正辛基葡萄糖苷、异辛基葡萄糖苷和仲辛基葡萄糖苷非离子表面活性剂。通过IR和1HNMR对辛基葡萄糖苷结构进行表征,并对正、异、仲辛基葡萄糖苷的理化性能和应用性能进行了比较。结果表明,正、异、仲辛基葡萄糖苷的临界胶束浓度(cmc)相近,异辛基葡萄糖苷的γcmc最小,正辛基葡萄糖苷的γcmc最大;正辛基葡萄糖苷的乳化性能、吸湿保湿性能以及去污性能最好,异辛基葡萄糖苷的泡沫性能、润湿渗透性能最好。更多还原

【Abstract】 Three nonionic surfactants, n-octyl glucoside, iso-octyl glucoside and sec-octyl glucoside,were synthesized by direct glycosidation of glucose with n-octanol, iso-octyl alcohol and sec-octanol. The structure of the product was characterized by IR and ¹HNMR, and the physical, chemical properties and application properties of the n-octyl, iso-octyl and sec-octyl glucosides were compared. The results showed that the critical micelle concentration（cmc） of n-octyl, iso-octyl and sec-octyl glucosides was similar, the γ_cmc of iso-octyl glucoside was the smallest, and the γ_cmc of n-octyl glucoside was the largest. N-octyl glucoside had the best emulsification, moisture absorption and retention, decontamination properties, and the iso-octyl glucoside had the best foaming property and wettability.更多还原