Laboratoire de Physique de Solides, UMR 8502, Bât. 510, Université Paris-Sud, F-91405 Orsay, France.
J Phys Chem B. 2011 Oct 6;115(39):11318-29. doi: 10.1021/jp200212g. Epub 2011 Sep 9.
The micellar state of Pluronic P123, which is a poly(ethylene oxide)-b-poly(propylene oxide)-b- poly(ethylene oxide) block polymer (EO(20)PO(70)EO(20)), has been investigated using SANS, SAXS, and differential scanning calorimetry under the conditions utilized in the synthesis of ordered mesoporous materials, such as SBA-15. The absolute intensity measurements, both with SANS and SAXS, have provided a detailed quantitative description of the P123 micelles in the framework of a simple core-shell spherical model. The model developed has been used to establish the structure of the copolymer micelles, including their size, shape, aggregation number and detailed composition, as well as the structural changes induced by varying reaction conditions. The effects of temperature, pH, acidic source and the addition of swelling agents (toluene and TMB) are reported and discussed.
使用小角和广角 X 射线散射（SAXS 和 SANS）以及差示扫描量热法（DSC），在合成有序介孔材料（如 SBA-15）的条件下，对 Pluronic P123（一种聚（环氧乙烷）-b-聚（丙烯氧化物）-b-聚（环氧乙烷）嵌段共聚物（EO(20)PO(70)EO(20)））的胶束状态进行了研究。小角和广角 X 射线散射的绝对强度测量结果，都提供了一种基于简单核壳球形模型的 P123 胶束的详细定量描述。所开发的模型用于建立共聚物胶束的结构，包括其大小、形状、聚集数以及详细组成，以及通过改变反应条件所引起的结构变化。报告和讨论了温度、pH 值、酸性源以及溶胀剂（甲苯和 TMB）的添加的影响。
