| Autor: |
Anna C. Fraser, Nick Guan Pin Chew, Maruti Hegde, Fei Liu, Chih-Wei Liu, Orlando Coronell, Theo J. Dingemans |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
ACS applied materialsinterfaces. 14(31) |
| ISSN: |
1944-8252 |
| Popis: |
Two aromatic polyamides─poly(3,3'-dihydroxybenzidine terephthalamide) (DHTA) and poly(3,3'-dihydroxybenzidine isophthalamide) (DHIA)─are compared for their ability to remove salts from water. DHTA is linear and rigid whereas DHIA is nonlinear and semirigid. DHTA and DHIA were selected as they allow us to investigate the effect of polymer backbone geometry on salt exclusion in a non-crosslinked thin film membrane, independently of the backbone chemistry. Because of their differences in solution viscosity, spin coating parameters for DHTA and DHIA solutions were optimized separately to produce thin film composites (TFCs) with reproducible membrane properties. The resulting DHTA TFCs displayed salt rejections of 87.8% (NaCl), 97.0% (MgSO |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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