کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
635041 | 1456084 | 2012 | 10 صفحه PDF | دانلود رایگان |

Thermally rearranged polybenzoxazole (TR-PBO) hollow fiber membranes were prepared using a non-solvent induced phase separation method intended to apply for CO2 separation from post-combustion flue gas. Asymmetric hollow fiber membranes were spun from a hydroxyl poly(amic acid) (HPAAc) precursor and subsequently converted to TR-PBO hollow fiber membranes after thermal treatment above 400 °C. The skin structure and porous substructure in TR-PBO hollow fiber membranes were maintained even after thermal treatment at above glass transition temperature (Tg) of precursor polymers. To fabricate defect-free hollow fiber membranes, the effects of dope composition and thermal rearrangement conditions were investigated. Gas permeation properties of TR-PBO hollow fiber membranes measured by constant pressure method with small laboratory scale test module revealed a high CO2 permeance (1940 GPU) with a CO2/N2 selectivity of 13.
► Thermally rearranged (TR) polymer membranes have been prepared from precursor polymer by simple thermal treatment process.
► TR-PBO hollow fiber membranes have been prepared by non-solvent induced phase separation process (NIPS).
► TR-PBO hollow fiber membranes for CO2 separation.
Journal: Journal of Membrane Science - Volumes 403–404, 1 June 2012, Pages 169–178