Engineered Coatings via the Assembly of Amino‐Quinone Networks. (30th November 2020)

• Record Type: Journal Article
• Authors: Zhong, Qi‐Zhi; Richardson, Joseph J.; He, Ai; Zheng, Tian; Lafleur, René P. M.; Li, Jianhua; Qiu, Wen‐Ze; Furtado, Denzil; Pan, Shuaijun; Xu, Zhi‐Kang; Wan, Ling‐Shu; Caruso, Frank
• Is Part Of: Angewandte Chemie. Volume 133:Number 5(2021)
• Page Start: 2376
• Page End: 2384
• Publication Date: 2020-11-30
• Subjects: nanostructures -- quinones -- self-assembly -- surface modification -- thin films; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.202010931
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: Engineering coatings with precise physicochemical properties allows for control over the interface of a material and its interactions with the surrounding environment. However, assembling coatings with well‐defined properties on different material classes remains a challenge. Herein, we report a co‐assembly strategy to precisely control the structure and properties (e.g., thickness, adhesion, wettability, and zeta potential) of coatings on various materials (27 substrates examined) using quinone and polyamine building blocks. By increasing the length of the amine building blocks from small molecule diamines to branched amine polymers, we tune the properties of the films, including the thickness (from ca. 5 to ca. 50 nm), interfacial adhesion (0.05 to 5.54 nN), water contact angle (130 to 40°), and zeta potential (−42 to 28 mV). The films can be post‐functionalized through the in situ formation of diverse nanostructures, including nanoparticles, nanorods, and nanocrystals. Our approach provides a platform for the rational design of engineered, substrate‐independent coatings for various applications. Abstract : Coatings and thin films of amino‐quinone networks are prepared on various materials by a co‐assembly strategy using quinones and polyamines. Using different building blocks affords precise control over the structures and properties of the coatings, which can serve as multifunctional reaction platforms to synthesize nanoparticles on surfaces.