Grafting cellulose acetate with ionic liquids for biofuel purification membranes : Influence of the anion
Hassan Hassan Abdellatif, F; Babin, J; Arnal-Herault, C; David, L; Jonquieres, A
| HERO ID | 5343873 |
|---|---|
| In Press | No |
| Year | 2018 |
| Title | Grafting cellulose acetate with ionic liquids for biofuel purification membranes : Influence of the anion |
| Authors | Hassan Hassan Abdellatif, F; Babin, J; Arnal-Herault, C; David, L; Jonquieres, A |
| Journal | Carbohydrate Polymers |
| Volume | 196 |
| Page Numbers | 176-186 |
| Abstract | Membranes made from cellulose acetate grafted with imidazolium or ammonium ionic liquids (ILs) containing different anions were considered for ethyl tert-butyl ether biofuel purification by pervaporation. The new cellulosic materials were obtained after bromide (Br-) exchange by different anions (Tf2N-, BF4-, AcO-). IL structure-membrane property relationships revealed that the membrane properties were strongly improved by varying the anion structure, molecular size and hydrogen bonding acceptor ability β in the Kamlet-Taft polarity scale. The grafted ammonium IL with AcO- anion combined the highest parameter β with big cation/anion sizes and finally led to the best membrane properties with a normalized pervaporation flux of 0.41 kg/h m2 (almost 20 times that of virgin cellulose acetate) for a reference thickness of 5 μm and a permeate ethanol content of 100%. Such properties thus corresponded to an outstanding separation factor at 50 °C. |
| Doi | 10.1016/j.carbpol.2018.05.008 |
| Pmid | 29891285 |
| Wosid | WOS:000436571600021 |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |