Department of Chemistry , University of North Carolina at Chapel Hill , Chapel Hill , North Carolina 27599-3290 , United States.
Department of Polymer Engineering and Color Technology , Amirkabir University of Technology , Tehran 15875-4413 , Iran.
ACS Appl Mater Interfaces. 2018 Jun 20;10(24):20869-20875. doi: 10.1021/acsami.8b05570. Epub 2018 Jun 5.
Multifunctional coatings that adhere to chemically distinct substrates are vital in many industries, including automotive, aerospace, shipbuilding, construction, petrochemical, biomedical, and pharmaceutical. We design well-defined, nearly monodisperse microgels that integrate hydrophobic dopamine methacrylamide monomers and hydrophilic zwitterionic monomers. The dopamine functionalities operate as both intraparticle cross-linkers and interfacial binders, respectively providing mechanical strength of the coatings and their strong adhesion to different substrates. In tandem, the zwitterionic moieties enable surface hydration to empower antifouling and antifogging properties. Drop-casting of microgel suspensions in ambient as well as humid environments facilitates rapid film formation and tunable roughness through regulation of cross-linking density and deposition conditions.
多功能涂层能够附着在具有化学差异的基底上，在许多行业中都至关重要，包括汽车、航空航天、造船、建筑、石油化工、生物医学和制药等行业。我们设计了具有明确定义且近乎单分散的微凝胶，其中集成了疏水性多巴胺甲基丙烯酰胺单体和亲水性两性离子单体。多巴胺官能团分别作为颗粒内交联剂和界面粘结剂，为涂层提供机械强度，并使其与不同基底具有很强的附着力。同时，两性离子部分能够使表面水合，赋予防污和防雾性能。微凝胶悬浮液在环境和潮湿环境中的滴落铸造通过调节交联密度和沉积条件，促进了快速成膜和可调节的粗糙度。
