中文摘要：

以芘为荧光探针、二苯甲酮为猝灭剂，采用稳态荧光探针法测定了3种不同结构的脂肪醇聚氧乙烯醚（FAPE）表面活性剂增溶芘后的稳态荧光光谱，建立了FAPE非离子表面活性剂的临界胶柬浓度（CMC）和-临界胶束聚集数（Nm）的测试方法。确定了荧光探针芘的适宜浓度Cp为6×10^-6mol／L，猝灭剂的适宜浓度CQ取0．06～0．12mmol／L，根据I3366／I394与FAPE浓度变化的关系，可得到直链、支链、芳香族的脂肪醇聚氧乙烯醚的临界胶柬浓度分别为0．2mmol／L、0.lmmol／L、0．05mmol／L。直链、支链、芳香族的脂肪醇聚氧乙烯醚的临界胶束聚集数依次为1168、255、6．0。结果表明，同系列非离子表面活性剂，不同碳链结构呈现出由直链一支链一芳香族，以及临界胶柬浓度和聚集数依次减小的趋势。

英文摘要：

Taken the pyrene as the fluorescence probe and diphenyl ketone as quencher, three different structure fatty alcohol-polyoxyethylene ether（FAPE） surfactants of steady-state fluorescence spectrum were determined by fluo- rescence probe method. A kind of method about FAPE surfactant of critical micelle concentration（CMC） and critical micelle aggregation number（Nm） was established. Ensure the proper concentration of fluorescence probe is 6 ×10^-6 mol/L, the proper concentration range of quencher is 0.06-0. 12mmol/L. According to relationship fluorescence intensity ratio of pyrene I336/I39. with surfactant concentration of aqueous solution. CMC values for stright-chain, branched-chain, aromatics alcohol ether were 0. 2mmol/L, 0.1ol/L, 0. 05mmol/L, respectively, Nm values for stright-chain, branched-chain, aromatics alcohol ether were 1168,255,6.0. The experimental results showed that the FAPE series nonionic surfactant, critical micelle concentration and micelle aggregation number decrease as carbon chain structure from straight-chain→ branched-chain→aromatics.