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Gemini表面活性剂(Cs H2s-α,ω-(Me2N+Cm H2m+1Br-)2,m-s-m)与胆汁酸盐(BS)利用静电作用构建超分子复合物,通过改变m-s-m和BS的结构,可以分别得到纳米纤维和囊泡状超分子聚集体.聚集体的形貌、结构和性质分别通过偏光显微镜(POM)、透射电子显微镜(TEM)、场发射扫描电子显微镜(FE-SEM)、X射线粉末衍射(XRD)及其它测试手段进行了表征.研究发现,通过改变m-s-m的烷基链长和间隔基团的长度,以及BS胆甾骨架上羟基的数目和位置,聚集体的形貌会发生明显的变化,聚集体主要依靠静电相互作用,并在疏水作用及氢键的协同作用下形成,本文的结果将有助于更好地理解离子自组装机理,并对超分子聚集体的设计提供新的思路.
Gemini surfactant (Cs H2s-α, ω- (Me2N + Cm H2m + 1Br-) 2, msm) and bile salts (BS) electrostatic interactions to build supramolecular complexes, by changing the msm and BS structure, The morphology, structure and properties of aggregates were characterized by POM, TEM, FE-SEM, X-ray diffraction and X-ray photoelectron microscopy, Powder diffraction (XRD) and other test methods were used to characterize the morphology of the aggregates by changing the length of the alkyl chain length of msm and the length of spacer groups, as well as the number and position of hydroxyl groups on the cholesteric framework of BS Clearly, aggregates rely mainly on electrostatic interactions and are formed by hydrophobic interaction and hydrogen bonding. The results in this paper will help to better understand the mechanism of ionic self-assembly and to provide supramolecular aggregate design New ideas.