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利用十六烷基罗丹明B作为主要荧光探针，研究了水溶性嵌段共聚物PluronicF－68在水溶液中的胶束化行为．研究表明：PluronicF－68形成胶束的临界胶束浓度与温度有极大关系，随温度的升高，其CMC值急剧下降，并且温度对胶束的性质也有很大影响，温度升高可导致胶束的微观粘度增大，表现出很强的负粘－温效应，并发现引起这种负粘－温效应的主要原因是PluronicF－68分子中聚环氧乙烷（PEO）链随温度升高亲水性变差引起其收缩所致，而由聚环氧丙烷（PPO）形成的内核的微观粘度随温度的升高略有下降．
Using cetyl rhodamine B as the main fluorescent probe, the micellarization behavior of water-soluble block copolymer Pluronic F-68 in aqueous solution was studied. The results show that the critical micelle concentration of micelles formed by Pluronic F-68 has a great relationship with the temperature. With the increase of temperature, CMC value of micelles sharply decreases, and the temperature has a great influence on the properties of micelles. The micro-viscosity of micelles increased and showed a strong negative visco-thermo-effect. The main reason for this negative visco-thermo-effect was that the polyethylene oxide (PEO) chains in Pluronic F- The high hydrophilicity leads to shrinkage due to its poor hydrophilicity, whereas the micro-viscosity of the core formed from polypropylene oxide (PPO) decreases slightly with increasing temperature.