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首页> 外文期刊>Chimie Nouvelle >Elaboration of Micellar Gels Based on Metal-Ligand Interactions
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Elaboration of Micellar Gels Based on Metal-Ligand Interactions

机译：基于金属-配体相互作用的胶束凝胶的制备

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摘要

Well-defined polystyrene-block-poly(tert-butylacrylate) diblock copolymers end-functionalized by a terpyridine ligand (PS-b-PtBA-[) were synthesized by nitroxide mediated radical polymerization (NMP) in presence of an initiator bearing a terpyridine moiety. These materials were then hierarchically organized over two levels of self-assembly to yield metallo-supramolecular micellar gels. The first level of self-assembly is the formation of micelles in the dilute regime. Spherical or cylindrical micelles were obtained depending on the block copolymer composition as well as the method of preparation. The second level of self-assembly was triggered upon addition of Ni(II) ions to the concentrated micellar solutions. Rotational rheometry was used to probe the impact of the micellar morphology and the presence of a co-solvent on the mechanical properties of the gel.
机译：在带有三联吡啶部分的引发剂的存在下，通过硝基氧介导的自由基聚合（NMP）合成了由三联吡啶配体（PS-b-PtBA- [）末端官能化的定义明确的聚苯乙烯嵌段-聚丙烯酸叔丁酯）二嵌段共聚物。然后将这些材料在两个级别的自组装中进行层次化组织，以生成金属-超分子胶束凝胶。自组装的第一级是在稀溶液中形成胶束。根据嵌段共聚物的组成以及制备方法获得球形或圆柱形的胶束。在将Ni（II）离子添加到浓缩的胶束溶液中时，触发了第二级自组装。旋转流变仪用于探测胶束形态和助溶剂的存在对凝胶力学性能的影响。

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