Abstract
A reverse-barrier technique is used to enable the treatment of electrospun poly(vinylidene fluoride) nanofibrous membranes with supercritical carbon dioxide. The treatment induces the formation of nanopores and extended-chain - crystallites of small lateral dimensions in the nanofibers. It also creates interfiber junctions, resulting in a remarkable improvement in mechanical properties of the membranes. The treated membranes are able to retain their shape very well after loading with an ionic liquid (IL). The ionic conductivity of the IL-loaded membrane is very close to that of the neat IL. The treatment of electrospun poly(vinylidene fluoride) membranes with supercritical carbon dioxide induces the formation of nanopores and extended-chain - crystallites of small lateral dimensions in the nanofibers. It also creates interfiber junctions so that the treated membranes are able to retain their shape very well after loading with an ionic liquid (IL). The ionic conductivity of the IL-loaded membrane is very close to that of the neat IL.
| Original language | English |
|---|---|
| Pages (from-to) | 1779-1784 |
| Number of pages | 6 |
| Journal | Macromolecular Rapid Communications |
| Volume | 31 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - Oct 18 2010 |
| Externally published | Yes |
ASJC Scopus Subject Areas
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry
Keywords
- Electrospinning
- Ionic liquid
- Membranes
- Poly(vinylidene fluoride) (PVDF)
- Structure
- Supercritical carbon dioxide