Hydrophobic and oleophobic surface modification using gelling agents derived from amino acids
作者:Anilkumar Raghavanpillai、Vincent A. Franco、Walter E. Meredith
DOI:10.1016/j.jfluchem.2011.10.015
日期:2012.3
series of fluorinated and non-fluorinated organogelators containing urea and amide functionalities was synthesized from readily available amino acid building blocks. These derivatives showed excellent gelation behavior in a variety of organic solvents at low concentrations ranging from 0.5–4 wt%. Gelation in the presence of a fibrous substrate led to a gel-coated surface, which upon drying provided
从容易获得的氨基酸结构单元合成了一系列含有脲和酰胺官能团的氟化和非氟化有机胶凝剂。这些衍生物在低浓度范围为0.5–4 wt%的各种有机溶剂中显示出优异的胶凝行为。在纤维底物存在下的胶凝作用导致形成凝胶涂层的表面,该表面在干燥后提供了一种复合材料,该复合材料具有浸渗在表面上的多孔微结构形态。通过浸渍胶凝剂获得的复合材料为表面提供了优异的疏水性。在这些复合材料中观察到的优异的疏水性能归因于干凝胶产生的增加的表面粗糙度和胶凝剂主链中存在的疏水官能团的组合。