Formation and properties of Langmuir and Gibbs monolayers: a comparative study using hydrogenated and partially fluorinated amphiphilic derivatives of mannitol
作者:Ewa Rogalska、Renata Bilewicz、Thierry Brigaud、Chaouki El Moujahid、Gaëlle Foulard、Charles Portella、Marie-José Stébé
DOI:10.1016/s0009-3084(99)00130-9
日期:2000.3
The synthesis and surface behavior of a series of nine new hydrogenated nonionic surfactants and their fluorinated analogs, derived from D-mannitol are described. Adsorption monolayers (Gibbs monolayers) were studied by surface pressure (H) measurements as a function of time. For the spread monolayers (Langmuir monolayers), the measurements of surface pressure versus molecular area (A) were performed
描述了衍生自D-甘露醇的一系列九种新型氢化非离子表面活性剂及其氟化类似物的合成和表面行为。通过测量表面压力(H)作为时间的函数研究吸附单层(Gibbs单层)。对于铺展的单层(Langmuir单层),进行了表面压力与分子面积(A)的测量。对于低浓度的大多数疏水性两亲物,从本体溶液到空气/水界面的吸附需要极长时间才能达到平衡。可以在吸附和扩散单层中研究的两种化合物的A值提供了数据,可以直接比较在空气/水界面处形成的两种类型薄膜的性能。