Parametric investigation of polymethacrylate monolith synthesis and stability via thermogravimetric characterisation
Polymethacrylate monoliths are synthetic adsorbents with macroporous and mesoporous interconnected channels that can be engineered to target the hydrodynamic features of a wide range of molecular species. However, rigorous study into the effect of synthesis conditions on their thermal stability is l...
| Main Authors: | , , , , |
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| Format: | Journal Article |
| Published: |
John Wiley & Sons, Ltd
2017
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| Online Access: | http://hdl.handle.net/20.500.11937/50289 |
| _version_ | 1848758440158035968 |
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| author | Acquah, C. Danquah, Michael Loo Chin Moy, Charles Anwar, M. Ongkudon, C. |
| author_facet | Acquah, C. Danquah, Michael Loo Chin Moy, Charles Anwar, M. Ongkudon, C. |
| author_sort | Acquah, C. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Polymethacrylate monoliths are synthetic adsorbents with macroporous and mesoporous interconnected channels that can be engineered to target the hydrodynamic features of a wide range of molecular species. However, rigorous study into the effect of synthesis conditions on their thermal stability is limited. This work attempts to characterise the influence of key synthesis process variables on the stability of polymethacrylate monoliths using thermogravimetric analysis at a heating rate of 10 °C/min. Experimental results showed that the thermal stability of polymethacrylate monoliths increased with decreasing polymerisation temperature from 85 to 65 °C. Increasing the total porogen (P) to monomer (M) ratio increased the thermal stability of the monolith by >62% and >50% for P40/M60-P60/M40 and P60/M40-P80/M20, respectively. The impact of the initiator concentration, monomer variation, biporogen ratio, washing and activation of the monoliths was investigated. Nuclear magnetic resonance analyses conducted confirmed the hydrolysis of epoxy moieties on the monolith. |
| first_indexed | 2025-11-14T09:44:01Z |
| format | Journal Article |
| id | curtin-20.500.11937-50289 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:44:01Z |
| publishDate | 2017 |
| publisher | John Wiley & Sons, Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-502892017-09-13T15:48:12Z Parametric investigation of polymethacrylate monolith synthesis and stability via thermogravimetric characterisation Acquah, C. Danquah, Michael Loo Chin Moy, Charles Anwar, M. Ongkudon, C. Polymethacrylate monoliths are synthetic adsorbents with macroporous and mesoporous interconnected channels that can be engineered to target the hydrodynamic features of a wide range of molecular species. However, rigorous study into the effect of synthesis conditions on their thermal stability is limited. This work attempts to characterise the influence of key synthesis process variables on the stability of polymethacrylate monoliths using thermogravimetric analysis at a heating rate of 10 °C/min. Experimental results showed that the thermal stability of polymethacrylate monoliths increased with decreasing polymerisation temperature from 85 to 65 °C. Increasing the total porogen (P) to monomer (M) ratio increased the thermal stability of the monolith by >62% and >50% for P40/M60-P60/M40 and P60/M40-P80/M20, respectively. The impact of the initiator concentration, monomer variation, biporogen ratio, washing and activation of the monoliths was investigated. Nuclear magnetic resonance analyses conducted confirmed the hydrolysis of epoxy moieties on the monolith. 2017 Journal Article http://hdl.handle.net/20.500.11937/50289 10.1002/apj.2077 John Wiley & Sons, Ltd restricted |
| spellingShingle | Acquah, C. Danquah, Michael Loo Chin Moy, Charles Anwar, M. Ongkudon, C. Parametric investigation of polymethacrylate monolith synthesis and stability via thermogravimetric characterisation |
| title | Parametric investigation of polymethacrylate monolith synthesis and stability via thermogravimetric characterisation |
| title_full | Parametric investigation of polymethacrylate monolith synthesis and stability via thermogravimetric characterisation |
| title_fullStr | Parametric investigation of polymethacrylate monolith synthesis and stability via thermogravimetric characterisation |
| title_full_unstemmed | Parametric investigation of polymethacrylate monolith synthesis and stability via thermogravimetric characterisation |
| title_short | Parametric investigation of polymethacrylate monolith synthesis and stability via thermogravimetric characterisation |
| title_sort | parametric investigation of polymethacrylate monolith synthesis and stability via thermogravimetric characterisation |
| url | http://hdl.handle.net/20.500.11937/50289 |