Surface cross-linked hydrogel for forward osmosis
To understand the feasibility of using surface-crosslinked semi-Interpenetrating Network (semi-IPN) hydrogel in powder form (<200 µm) containing Poly N-isopropylacrylamide (PNIPAM) matrix and linear Poly Sodium Acrylate (PSA) as a suitable draw solute. Post-synthesis surface crosslinking was cond...
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| Format: | Final Year Project |
| Language: | English |
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Nanyang Technological University
2020
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| Online Access: | https://hdl.handle.net/10356/139134 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | To understand the feasibility of using surface-crosslinked semi-Interpenetrating Network (semi-IPN) hydrogel in powder form (<200 µm) containing Poly N-isopropylacrylamide (PNIPAM) matrix and linear Poly Sodium Acrylate (PSA) as a suitable draw solute. Post-synthesis surface crosslinking was conducted with Ethylene Glycol Diglycidyl Ether (EGDE) or Epichlorohydrin (EPH) to determine the optimal degree of surface crosslinking. There are several parameters that can affect the crosslinking process such as the type of crosslinking, the duration of crosslinking process and the amount of crosslinker used. The efficiency of a draw solute was studied through a series of characterization such as DSC, FTIR, Forward Osmosis Test and deswelling test. |
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