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用 I2探针增溶分光光度法考察二元 Pluronic两亲嵌段共聚物在水溶液中的胶束化行为 .实验结果表明，对于分子 PPO嵌段长度相近的 P94/L92和 F108/L92二元混合体系，这些分子在全部浓度比例范围内都发生相互作用，生成了混合胶束 .由于这些分子的 PEO嵌段长度不等，随着具有较短 PEO嵌段的 L92分子加入， P94/L92和 F108/L92混合胶束外壳的 EO基团数减少导致水化度降低 .对于分子 PPO嵌段长度不等的 P94/L64二元混合体系，当溶液体相中 L64的质量分数 wL64< 0.4时，由于 P94/L64混合预胶束的形成，使 P94分子在较高浓度时才生成单组分胶束 .当 wL64 >0.4后，溶液中生成了 P94/L64混合胶束 .温度升高促进了胶束化行为 .
The micellarization behavior of binary Pluronic amphiphilic block copolymers in aqueous solution was investigated by I2 probe solubilizing spectrophotometry.The experimental results showed that for the binary mixtures of P94 / L92 and F108 / L92 System, these molecules interact at all concentration ratios to produce mixed micelles.With the addition of L92 molecules with shorter PEO blocks due to the unequal PEO block lengths of these molecules, P94 / L92 and F108 / L92 mixed micelle shell decreased the number of EO groups, resulting in a decrease of hydration.For the P94 / L64 binary system with different PPO block lengths, when the mass fraction of L64 in the bulk of the solution wL64 <0.4, The formation of P94 / L64 mixed pre micelles resulted in the formation of single-component micelles at higher concentrations of P94 molecules.When the concentration of L64> 0.4, P94 / L64 mixed micelles were formed.The temperature increase promoted the formation of micelles Behavior.