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采用流变和荧光等方法研究了季铵盐阳离子双子表面活性剂C12-2-C12.2Br(S2)与水溶性高分子羟丙基纤维素(hydroxypropyl cellulose HPC)质量分数1%的水溶液的相互作用。HPC/S2水溶液在剪切速率r=0~700s-1内均表现为牛顿型。混合溶液η0随着表面活性剂浓度的增加开始升高,在表面活性剂浓度约2.0mmol·L-1时出现峰值,然后呈缓慢下降趋势。稳态荧光测定I1/I3及电导测定电导率随S2浓度变化的结果表明:HPC/S2水溶液中两者相互作用,S2在HPC分子上形成了聚集体,临界聚集浓度为0.7mmol·L-1,到2.0mmol·L-1时溶液中自由胶团生成。
The rheological and fluorescence methods were used to study the interaction between the quaternary ammonium cationic amphoteric surfactant C12-2-C12.2Br (S2) and the water-soluble polymer hydroxypropyl cellulose HPC 1% effect. HPC / S2 aqueous solution showed Newtonian in the shear rate r = 0 ~ 700s-1. The η0 of the mixed solution began to increase with the increase of the surfactant concentration, and peaked at a surfactant concentration of 2.0 mmol·L-1, then decreased slowly. The results of steady-state fluorescence measurements I1 / I3 and conductivity measurements with S2 concentration show that the two interact in the HPC / S2 aqueous solution and S2 forms aggregates on HPC molecules with a critical concentration of 0.7 mmol·L-1 , To 2.0mmol · L-1 free micelles in solution.