Microwave enhanced synthesis of chitosan-graft-polyacrylamide molecularly imprinted polymer (MIP) for selective extraction of antioxidants
Polymers have been molecularly imprinted for the purpose of binding specifically to ?-tocotrienol (vitamin E). A molecularly imprinted polymer (MIP) material was prepared using ?-tocotrienol as the imprinted molecule, acrylamide as functional monomer and macroporous chitosan beads as functional matr...
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Hindawi Limited
2023
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| _version_ | 1833351660866371584 |
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| author | Saifuddin N. Yasumira A.A.N. |
| author2 | 22135844300 |
| author_facet | 22135844300 Saifuddin N. Yasumira A.A.N. |
| author_sort | Saifuddin N. |
| building | UNITEN Library |
| collection | Institutional Repository |
| content_provider | Universiti Tenaga Nasional |
| content_source | UNITEN Institutional Repository |
| continent | Asia |
| country | Malaysia |
| description | Polymers have been molecularly imprinted for the purpose of binding specifically to ?-tocotrienol (vitamin E). A molecularly imprinted polymer (MIP) material was prepared using ?-tocotrienol as the imprinted molecule, acrylamide as functional monomer and macroporous chitosan beads as functional matrix. Chitosan-graft-polyacrylamide was synthesized without any radical initiator or catalyst using microwave (MW) irradiation. The representative microwave synthesized graft copolymer was characterized by fourier transform-infrared spectroscopy, taking chitosan as a reference. Microwave irradiation was exploited for polyacrylamide grafting on the cross-linked chitosan beads to produce MIP, where both time as well as chemicals can be saved. It can be assumed that the chitosan coated polyacrylamide MIP will have better pH stability and enhanced adsorption capacity. The maximum adsorption capacity was observed to be 3.95 mg/g of MIP, which gave removal efficiency of 93%. After 4 h, the change of adsorption capacities for ?-tocotrienol did not show notable effects. The Langmuir and Freundlich adsorption models were also applied to describe the equilibrium isotherms. |
| format | Article |
| id | my.uniten.dspace-30720 |
| institution | Universiti Tenaga Nasional |
| publishDate | 2023 |
| publisher | Hindawi Limited |
| record_format | dspace |
| spelling | my.uniten.dspace-307202023-12-29T15:51:52Z Microwave enhanced synthesis of chitosan-graft-polyacrylamide molecularly imprinted polymer (MIP) for selective extraction of antioxidants Saifuddin N. Yasumira A.A.N. 22135844300 35101245800 Chitosan beads Microwave Molecular imprinting Palm oil ?-Tocotrienol Polymers have been molecularly imprinted for the purpose of binding specifically to ?-tocotrienol (vitamin E). A molecularly imprinted polymer (MIP) material was prepared using ?-tocotrienol as the imprinted molecule, acrylamide as functional monomer and macroporous chitosan beads as functional matrix. Chitosan-graft-polyacrylamide was synthesized without any radical initiator or catalyst using microwave (MW) irradiation. The representative microwave synthesized graft copolymer was characterized by fourier transform-infrared spectroscopy, taking chitosan as a reference. Microwave irradiation was exploited for polyacrylamide grafting on the cross-linked chitosan beads to produce MIP, where both time as well as chemicals can be saved. It can be assumed that the chitosan coated polyacrylamide MIP will have better pH stability and enhanced adsorption capacity. The maximum adsorption capacity was observed to be 3.95 mg/g of MIP, which gave removal efficiency of 93%. After 4 h, the change of adsorption capacities for ?-tocotrienol did not show notable effects. The Langmuir and Freundlich adsorption models were also applied to describe the equilibrium isotherms. Final 2023-12-29T07:51:52Z 2023-12-29T07:51:52Z 2010 Article 10.1155/2010/402698 2-s2.0-77957342058 https://www.scopus.com/inward/record.uri?eid=2-s2.0-77957342058&doi=10.1155%2f2010%2f402698&partnerID=40&md5=0c9760e39edb5012977e0c37716895b4 https://irepository.uniten.edu.my/handle/123456789/30720 7 4 1362 1374 All Open Access; Gold Open Access; Green Open Access Hindawi Limited Scopus |
| spellingShingle | Chitosan beads Microwave Molecular imprinting Palm oil ?-Tocotrienol Saifuddin N. Yasumira A.A.N. Microwave enhanced synthesis of chitosan-graft-polyacrylamide molecularly imprinted polymer (MIP) for selective extraction of antioxidants |
| title | Microwave enhanced synthesis of chitosan-graft-polyacrylamide molecularly imprinted polymer (MIP) for selective extraction of antioxidants |
| title_full | Microwave enhanced synthesis of chitosan-graft-polyacrylamide molecularly imprinted polymer (MIP) for selective extraction of antioxidants |
| title_fullStr | Microwave enhanced synthesis of chitosan-graft-polyacrylamide molecularly imprinted polymer (MIP) for selective extraction of antioxidants |
| title_full_unstemmed | Microwave enhanced synthesis of chitosan-graft-polyacrylamide molecularly imprinted polymer (MIP) for selective extraction of antioxidants |
| title_short | Microwave enhanced synthesis of chitosan-graft-polyacrylamide molecularly imprinted polymer (MIP) for selective extraction of antioxidants |
| title_sort | microwave enhanced synthesis of chitosan-graft-polyacrylamide molecularly imprinted polymer (mip) for selective extraction of antioxidants |
| topic | Chitosan beads Microwave Molecular imprinting Palm oil ?-Tocotrienol |
| url_provider | http://dspace.uniten.edu.my/ |