Mechanically robust thermally rearranged (TR) polymer membranes with spirobisindane for gas separation
- Title
- Mechanically robust thermally rearranged (TR) polymer membranes with spirobisindane for gas separation
- Author
- 이영무
- Keywords
- Thermally rearranged membrane; Polymer membrane; CO2 separation; High fractional free volume; CCS
- Issue Date
- 2013-05
- Publisher
- Elsevier
- Citation
- Journal of Membrane Science ,1 May 2013, 434, p.137-147
- Abstract
- Novel spirobisindane-containing thermally rearranged (TR) benzoxazole(spiroTR-PBO) membranes were prepared by thermal treatment of four newly synthesized spirobisindane-containing hydroxyl-polyimides (spiroHPIs). Transport properties of spirobisindane-containing polymers were investigated along with fractional free volume and density measurements, as well as molecular simulation analysis. The resulting spiroTR-PBOs exhibited high free volumes and superior mechanical properties in terms of elongation and tensile strength, and these findings were supported by molecular dynamic simulations. SpiroTR-PBO membranes containing hexafluoroisopropylidene moiety in the polymer backbone showed a six-fold increase in CO2 permeability, compared to that of the spiroHPI precursor. SpiroTR-PBO membranes showed strong potential to be applied in carbon capture and separation of gases because of their high gas permeability coupled with robust mechanical properties.
- URI
- https://www.sciencedirect.com/science/article/pii/S0376738813000343?via%3Dihubhttp://hdl.handle.net/20.500.11754/45456
- ISSN
- 0376-7388
- DOI
- 10.1016/j.memsci.2013.01.011
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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