Mussel-Inspired Hydrophobic Coatings for Water-Repellent Textiles and Oil Removal
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- 作者：Beatr铆z Garc铆a ; Javier Saiz-Poseu ; Roser Gras-Charles ; Jordi Hernando ; Ramon Alib茅s ; Fernando Novio ; Josep Sed贸 ; F茅lix Busqu茅 ; Daniel Ruiz-Molina
- 刊名：ACS Applied Materials & Interfaces
- 出版年：2014
- 出版时间：October 22, 2014
- 年：2014
- 卷：6
- 期：20
- 页码：17616-17625
- 全文大小：493K
- ISSN：1944-8252
文摘
A series of catechol derivatives with a different number of linear alkyl chain substituents, and different length, have been shown to polymerize in the presence of aqueous ammonia and air, yielding hydrophobic coatings that present the ability to provide robust and efficient water repellency on weaved textiles, including hydrophilic cotton. The polymerization strategy presented exemplifies an alternative route to established melanin- and polydopamine-like functional coatings, affording designs in which all catechol (adhesive) moieties support specific functional side chains for maximization of the desired (hydrophobic) functionality. The coatings obtained proved effective in the transformation of polyester and cotton weaves, as well as filter paper, into reusable water-repellent, oil-absorbent materials capable of retaining roughly double their weight in model compounds (n-tetradecane and olive oil), as well as of separating water/oil mixtures by simple filtration.