Chem. Mater. 2000, 12, 1941-1946
1941
Layered Polyelectrolyte Films as Selective, Ultrathin Barriers for Anion Transport Jeremy J. Harris, Jacqueline L. Stair, and Merlin L. Bruening* Department of Chemistry, Michigan State University, East Lansing, Michigan 48824 Received February 7, 2000. Revised Manuscript Received April 24, 2000
Synthesis of high-flux composite membranes requires methods for deposition of ultrathin, defect-free films on highly permeable supports. Layer-by-layer deposition of polyelectrolytes on porous alumina (0.02 µm pore diameter) produces such membranes. Electron microscopy shows that five bilayers (
