Synthesis of highly porous poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) asymmetric membranes
For the first time, self-assembly and non-solvent induced phase separation was applied to polysulfone-based linear block copolymers, reaching mechanical stability much higher than other block copolymer membranes used in this method, which were mainly based on polystyrene blocks. Poly(tert-butyl acry...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
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R S C Publications
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/9041 |
| _version_ | 1848745834973233152 |
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| author | Xie, Y. Moreno, N. Calo, Victor Cheng, H. Hong, P. Sougrat, R. Behzad, A. Tayouo, R. Nunes, S. |
| author_facet | Xie, Y. Moreno, N. Calo, Victor Cheng, H. Hong, P. Sougrat, R. Behzad, A. Tayouo, R. Nunes, S. |
| author_sort | Xie, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | For the first time, self-assembly and non-solvent induced phase separation was applied to polysulfone-based linear block copolymers, reaching mechanical stability much higher than other block copolymer membranes used in this method, which were mainly based on polystyrene blocks. Poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) (PtBA30k-b-PSU14k-b-PtBA30k) with a low polydispersity of 1.4 was synthesized by combining step-growth condensation and RAFT polymerization. Various advanced electron microscopies revealed that PtBA30k-b-PSU14k-b-PtBA30k assembles into worm-like cylindrical micelles in DMAc and adopts a "flower-like" arrangement with the PSU central block forming the shell. Computational modeling described the mechanism of micelle formation and morphological transition. Asymmetric nanostructured membranes were obtained with a highly porous interconnected skin layer and a sublayer with finger-like macrovoids. Ultrafiltration tests confirmed a water permeance of 555 L m-2 h-1 bar-1 with a molecular weight cut-off of 28 kg mol-1. PtBA segments on the membrane surface were then hydrolyzed and complexed with metals, leading to cross-linking and enhancement of antibacterial capability. |
| first_indexed | 2025-11-14T06:23:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-9041 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:23:40Z |
| publishDate | 2016 |
| publisher | R S C Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-90412018-03-29T09:05:56Z Synthesis of highly porous poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) asymmetric membranes Xie, Y. Moreno, N. Calo, Victor Cheng, H. Hong, P. Sougrat, R. Behzad, A. Tayouo, R. Nunes, S. For the first time, self-assembly and non-solvent induced phase separation was applied to polysulfone-based linear block copolymers, reaching mechanical stability much higher than other block copolymer membranes used in this method, which were mainly based on polystyrene blocks. Poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) (PtBA30k-b-PSU14k-b-PtBA30k) with a low polydispersity of 1.4 was synthesized by combining step-growth condensation and RAFT polymerization. Various advanced electron microscopies revealed that PtBA30k-b-PSU14k-b-PtBA30k assembles into worm-like cylindrical micelles in DMAc and adopts a "flower-like" arrangement with the PSU central block forming the shell. Computational modeling described the mechanism of micelle formation and morphological transition. Asymmetric nanostructured membranes were obtained with a highly porous interconnected skin layer and a sublayer with finger-like macrovoids. Ultrafiltration tests confirmed a water permeance of 555 L m-2 h-1 bar-1 with a molecular weight cut-off of 28 kg mol-1. PtBA segments on the membrane surface were then hydrolyzed and complexed with metals, leading to cross-linking and enhancement of antibacterial capability. 2016 Journal Article http://hdl.handle.net/20.500.11937/9041 10.1039/c6py00215c R S C Publications restricted |
| spellingShingle | Xie, Y. Moreno, N. Calo, Victor Cheng, H. Hong, P. Sougrat, R. Behzad, A. Tayouo, R. Nunes, S. Synthesis of highly porous poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) asymmetric membranes |
| title | Synthesis of highly porous poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) asymmetric membranes |
| title_full | Synthesis of highly porous poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) asymmetric membranes |
| title_fullStr | Synthesis of highly porous poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) asymmetric membranes |
| title_full_unstemmed | Synthesis of highly porous poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) asymmetric membranes |
| title_short | Synthesis of highly porous poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) asymmetric membranes |
| title_sort | synthesis of highly porous poly(tert-butyl acrylate)-b-polysulfone-b-poly(tert-butyl acrylate) asymmetric membranes |
| url | http://hdl.handle.net/20.500.11937/9041 |