Shandong Provincial Key Laboratory of Fine Chemicals, Key Laboratory of Fine Chemicals in Universities of Shandong, Qilu University of Technology , Jinan 250353, China.
ACS Appl Mater Interfaces. 2016 Nov 16;8(45):31281-31288. doi: 10.1021/acsami.6b09381. Epub 2016 Nov 3.
The development of stimuli-responsive materials with the ability of controllable oil/water separation is crucial for practical applications. Here, a novel pH responsive nonfluorine-containing copolymer was designed. The copolymer together with silica can be dip-coated on different materials including cotton fabric, filter paper, and polyurethane foam. The coated materials exhibit switchable superhydrophilicity and superhydrophobicity and can be applied in continuous separation of oil/water/oil three phase mixtures, different surfactant stabilized emulsion (oil-in-water, water-in-oil, and oil-in-acidic water) as well as oil uptake and release via in situ and ex situ pH change. We expect that the coatings highlight the practical applications because of the cost-effective preparation process and fluorine-free strategy.
具有可控油水分离能力的刺激响应材料的发展对于实际应用至关重要。在这里，设计了一种新型 pH 响应型无氟共聚物。该共聚物与二氧化硅一起可以涂覆在包括棉织物、滤纸和聚氨酯泡沫在内的不同材料上。涂覆的材料表现出可切换的超亲水性和超疏水性，并可应用于连续分离油/水/油三相混合物、不同表面活性剂稳定的乳液（油包水、水包油和油包酸性水）以及通过原位和异位 pH 变化进行吸油和释油。我们期望由于具有成本效益的制备工艺和无氟策略，该涂层能够突出实际应用。
