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对PEO-PPO-PEO（127）三嵌段共聚物的水溶液行为及添加十二烷基硫酸钠（SDS）后对共聚物溶液行为的影响进行了研究．利用荧光探针技术对不同SDS浓度下F127／SDS体系的胶来形成进行研究，并研究了SDS对F127浓溶液凝胶化行为的影响．结果表明：随着SDS浓度的增大，F127稀溶液胶束的形成受到抑制，SDS浓度愈大，形成的胶束结构就愈疏松．对F127浓溶液来说，SDS与F127摩尔比小于2时，体系易于凝胶化；但当SDS浓度增大，其与F127摩尔比大于2时，体系开始难于凝胶化，直至摩尔比大于5时，体系不再形成凝胶．
The aqueous solution behavior of PEO-PPO-PEO (127) triblock copolymer and the effect of adding sodium dodecyl sulfate (SDS) on the behavior of copolymer solution were studied. Fluorescence probe technique was used to study the formation of glue in F127 / SDS system at different SDS concentrations. The effect of SDS on the gelation behavior of F127 concentrated solution was also studied. The results showed that with the increase of SDS concentration, the formation of micelles of F127 dilute solution was inhibited. The larger the concentration of SDS, the more micelles formed. For F127 concentrated solution, the system is easy to gel when the molar ratio of SDS to F127 is less than 2; however, when the concentration of SDS is larger than 2, the system begins to be difficult to gel until the molar ratio is more than 5 When the system no longer gel.