Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
639576 | Journal of Membrane Science | 2006 | 5 Pages |
Abstract
In this paper, we describe nano-assembly of amphiphilic polyelectrolytes within aluminosilicate nanoplates by layer-by-layer deposition and demonstrate how the resulting films are capable of functioning as hydrophobic barrier. The polyelectrolytes with a rigid backbone and long alkyl substitutes organized within the inorganic nanosheets, to form a double layer of interdigitated alkyl substitutes. The resulting 100 nm-thick hydrophobic barriers efficiently blocked transport of moisture and hence enhanced the water vapor barrier properties of a relatively thick substrate (Nafion membrane, ca. 50 μm) up to 22 times.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Dong Wook Kim, Bon-Cheol Ku, Diane Steeves, Ramaswamy Nagarajan, Alexandre Blumstein, Jayant Kumar, Philip W. Gibson, Jo Ann Ratto, Lynne A. Samuelson,