PSU/PET copolymer-based asymmetric polymeric membranes: influence of antioxidant
| Autor: | Z.V.P. Murthy, Smitha Rajesh |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Ultrafiltration Ocean Engineering 02 engineering and technology 021001 nanoscience & nanotechnology Pollution Solvent chemistry.chemical_compound Membrane 020401 chemical engineering chemistry Chemical engineering Polymer chemistry Copolymer Polyethylene terephthalate Polysulfone 0204 chemical engineering Phase inversion (chemistry) 0210 nano-technology Ethylene glycol Water Science and Technology |
| Zdroj: | Desalination and Water Treatment. 57:26820-26829 |
| ISSN: | 1944-3986 1944-3994 |
| DOI: | 10.1080/19443994.2015.1120688 |
| Popis: | Aim of this work was to synthesize thermally and mechanically stable ultrafiltration polymeric membranes. The preparation (phase inversion method) and characteristics of asymmetric polysulfone/polyethylene terephthalate (PSU/PET) copolymer membranes are studied in detail. Polymeric membranes were synthesized from the casting solutions of PSU/PET, dichloromethane solvent and 2,2′-ethylidene-bis(4,6-di-tert-butylphenol) (EBBP) as antioxidant along with water-soluble poly(ethylene glycol) (PEG) as an additive through in situ process. From experiments, it is observed that when the antioxidant EBBP quantity reached 15 g (15 wt%), the morphologies and properties of resultant membranes are excellent. It was observed that antioxidant EBBP, along with PEG, behaves as pore-forming agent to enhance pure water flux and reduce solute rejection of membranes, but further increase in antioxidant EBBP resulted in pore-reduction. The membrane were analyzed using scanning electron microscopy, Fourier transform infra... |
| Databáze: | OpenAIRE |
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