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首页> 外文期刊>ACS applied materials & interfaces >Robust Coatings via Catechol-Amine Codeposition: Mechanism, Kinetics, and Application
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Robust Coatings via Catechol-Amine Codeposition: Mechanism, Kinetics, and Application

机译:通过儿茶酚胺批评的鲁棒涂料:机制,动力学和应用

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摘要

Bioinspired polyphenol/polyamine codeposition has been demonstrated by the competence for surface modification; however, the reaction processes including mechanism and kinetics remain superficially understood. In this work, the catechol (CA)-amine reaction has been thoroughly investigated by using CA and two amines m-phenylenediamine and piperazine. We verify that both primary and secondary amines are prone to link with CA through Michael addition to form polyphenol/polyamine oligomers under aerobic and mild-alkaline conditions. Molecular simulations indicate that the Michael addition products are dominant for both aromatic and aliphatic amines with CA, which supports the durable chem- and phystability of the codeposited coatings. The aggregation kinetics of polyphenol/polyamine is provided for the first time, and the formed aggregates show high-adhesive properties, which can be deposited as the skin layers for high-performance nanofiltration membranes.
机译:通过表面改性的能力证明了生物悬浮的多酚/多胺编号; 然而,包括机制和动力学的反应过程仍然是表面上的。 在这项工作中,通过使用Ca和2胺M-苯二胺和哌嗪彻底研究了儿茶酚(Ca)-amine反应。 我们验证初级和次级胺均易于通过迈克尔通过迈克尔的CA连接,以在有氧和轻度碱性条件下形成多酚/多胺低聚物。 分子模拟表明,迈克尔加成产物具有CA的芳族和脂族胺的占优势,其支持Copeposited涂层的耐用化学和柔软性。 首次提供多酚/多胺的聚集动力学,并且形成的聚集体显示出高粘合性的性质,其可以沉积为用于高性能纳米过滤膜的皮肤层。

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