Institut Charles Sadron, CNRS, University of Strasbourg, 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France.
Matière et Systèmes Complexes (MSC) Laboratory, UMR 7057, Sorbonne Paris Cité, University of Paris Diderot-Paris VII, Bâtiment Condorcet, 10 rue Alice Domon et Léonie Duquet., 75205, Paris Cedex 13, France.
Chemistry. 2018 Nov 16;24(64):17125-17137. doi: 10.1002/chem.201803833. Epub 2018 Oct 23.
The condensation of aldehydes and amines in water to give amphiphilic imines can lead to a particular autocatalytic behavior known as autopoiesis, in which the closed micellar structure made by the amphiphile at the mesoscale can accelerate the condensation of its constituents. Herein, through a combination of analytical tools, including diffusion ordered spectroscopy (DOSY) as well as light, neutron, and X-ray scattering techniques, the thermodynamic and kinetic parameters were probed at both the level of dynamic covalent imine bond formation and the level of the resulting micellar self-assemblies. It was found that the autopoietic behavior was the result of a combination of several parameters, including solubilization of hydrophobic building blocks, template effect at the core-shell interface, and growth/division cycles of the micellar objects.
醛和胺在水中缩合生成两亲性亚胺可以导致一种特殊的自催化行为，称为自组织，其中由两亲物在介观尺度上形成的封闭胶束结构可以加速其成分的缩合。在此，通过一系列分析工具的结合，包括扩散有序谱（DOSY）以及光、中子和 X 射线散射技术，在动态共价亚胺键形成的水平和形成的胶束自组装的水平上探测了热力学和动力学参数。结果发现，自组织行为是包括疏水性构建块的溶解、核壳界面的模板效应以及胶束物体的生长/分裂循环等几个参数的组合的结果。
