| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 637486 | Journal of Membrane Science | 2008 | 8 Pages |
Abstract
New solvent resistant nanofiltration (SRNF) membranes with polypyrrole (PPy) modified toplayer were prepared on different types support by in situ pyrrole polymerization. The morphology of the membranes was studied by SEM. The PPy modified membranes were applied in the filtration of organic solvents. All the PPy modified membranes showed a very high retention of the negatively charged RB in different solvent systems, comparable to those of the MPF-50 and STARMEM 122 commercial membranes, but at much higher flux. The extended filtration experiment in strong aprotic DMF of PPy modified membranes showed a clearly stable permeability and retention over 30Â h. In addition, the PPy modified membranes showed a much higher flux in THF systems than for earlier reported crosslinked poly(imide) membranes.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Xianfeng Li, Pieter Vandezande, Ivo F.J. Vankelecom,