| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 639311 | Journal of Membrane Science | 2006 | 5 Pages |
Abstract
Stability of silanes covalently bound to the surface of nanoporous alumina membranes was investigated and the reasons for variation have been identified as due to activation of Al–O–Si bond caused by local increase of pH from primary and secondary amines of the linker molecules. Transformation of amines into amides or passivation of alumina surface by as little as five atomic layers of deposited silica before silanization dramatically improve stability of immobilized molecules.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Victor Szczepanski, Ivan Vlassiouk, Sergei Smirnov,