疏水缔合聚合物与非离子表面活性剂的相互作用

Interaction between Hydrophobically Associating Polymer and Nonionic Surfactant

为揭示疏水缔合聚合物(HMPAM)与非离子表面活性剂壬基酚聚氧乙烯醚(TX)间的相互作用规律,通过测量HMPAM/TX二元体系的表观黏度、荧光光谱和流变性研究了HMPAM与环氧乙烷(EO)数不同(4~15)的TX间的相互作用,分析了二者相互作用的变化规律。结果表明,HMPAM/TX二元体系宏观黏度的变化是由混合疏水微区微观结构与数量及体系中空间网络结构的变化引起的。HMPAM与TX系列表面活性剂相互作用的强弱为TX-4>TX-7>TX-10>TX-13≈TX-15,按EO数的不同将其相互作用分为三种:(1)EO数为4~7,以TX-4、TX-7为代表,只表现出协同作用;(2)EO数为8~12,以TX-10为代表,既有协同作用又有"负作用";(3)EO数为13~15,以TX-13、TX-15为代表,只有"负作用"。

In order to reveal the interaction law between hydrophobically associating polymer （HMPAM） and nonionic surfactant nonylphenol ethoxylate （TX） , the apparent viscosity, fluorescence spectra and rheological properties of HMPAM/TX binary system were measured, the interaction between HMPAM and TX with different ethylene oxide （EO） number （4-15） was studied, and the change rule of the interaction was analyzed. The results showed that the change of the macro viscosity of HMPAM/TX binary system was caused by the change of microstructure and quantity of the mixed hydrophobic micro zone and the change of the space network structure in the system. TX series surfactants were arranged according to the interaction strength between HMPAM and TX series surfactants in following order： TX-4 〉 TX-7 〉 TX- 10 〉 TX- 13≈TX- 15. According to the different number of EO, the interaction between the two was divided into three types. （1） When the EO number was 4-7, TX-4 and TX-7 as the representative, it only showed a synergistic effect. （2） When the EO number was 8-12, TX-10 as the representative, it had synergistic effect and ＂negative effect＂. （3） When the EO number was 13-15, TX-13 and TX-15 as the representative, it only showed ＂negative effect＂.