Modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate
Flax fibres were modified by radiation induced graft copolymerization of glycidyl methacrylate (GMA) by pre-irradiation method in an emulsion medium. The effect of reaction parameters on the degree of grafting (DOG) such as concentration of bleaching agent, absorbed dose, monomer concentration, temp...
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| Format: | Article |
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Elsevier Ltd
2016
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| author | Moawia, R. M. Nasef, M. M. Mohamed, N. H. Ripin, A. |
| author_facet | Moawia, R. M. Nasef, M. M. Mohamed, N. H. Ripin, A. |
| author_sort | Moawia, R. M. |
| collection | ePrints |
| description | Flax fibres were modified by radiation induced graft copolymerization of glycidyl methacrylate (GMA) by pre-irradiation method in an emulsion medium. The effect of reaction parameters on the degree of grafting (DOG) such as concentration of bleaching agent, absorbed dose, monomer concentration, temperature and reaction time were investigated. The DOG was found to be dependent on the investigated parameters. The incorporation of poly(GMA) grafts in the bleached flax fibres was confirmed by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The structural and mechanical changes were evaluated by X-ray diffraction (XRD) and mechanical tester, respectively. The results revealed that reacting bleached flax fibres irradiated with 20 kGy with 5% GMA emulsion containing 0.5% polyoxyethylene-sorbitan monolaurate (Tween 20) surfactant at 40. °C for 1 h led to a maximum DOG of 148%. The grafted fibres showed sufficient mechanical strength and hydrophobicity which make them promising precursors for development of adsorbents after appropriate chemical treatments. |
| first_indexed | 2024-03-05T20:01:52Z |
| format | Article |
| id | utm.eprints-71622 |
| institution | Universiti Teknologi Malaysia - ePrints |
| last_indexed | 2024-03-05T20:01:52Z |
| publishDate | 2016 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | utm.eprints-716222017-11-20T08:28:24Z http://eprints.utm.my/71622/ Modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate Moawia, R. M. Nasef, M. M. Mohamed, N. H. Ripin, A. TP Chemical technology Flax fibres were modified by radiation induced graft copolymerization of glycidyl methacrylate (GMA) by pre-irradiation method in an emulsion medium. The effect of reaction parameters on the degree of grafting (DOG) such as concentration of bleaching agent, absorbed dose, monomer concentration, temperature and reaction time were investigated. The DOG was found to be dependent on the investigated parameters. The incorporation of poly(GMA) grafts in the bleached flax fibres was confirmed by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The structural and mechanical changes were evaluated by X-ray diffraction (XRD) and mechanical tester, respectively. The results revealed that reacting bleached flax fibres irradiated with 20 kGy with 5% GMA emulsion containing 0.5% polyoxyethylene-sorbitan monolaurate (Tween 20) surfactant at 40. °C for 1 h led to a maximum DOG of 148%. The grafted fibres showed sufficient mechanical strength and hydrophobicity which make them promising precursors for development of adsorbents after appropriate chemical treatments. Elsevier Ltd 2016 Article PeerReviewed Moawia, R. M. and Nasef, M. M. and Mohamed, N. H. and Ripin, A. (2016) Modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate. Radiation Physics and Chemistry, 122 . pp. 35-42. ISSN 0969-806X https://www.scopus.com/inward/record.uri?eid=2-s2.0-84954567374&doi=10.1016%2fj.radphyschem.2016.01.008&partnerID=40&md5=230c7b23a72de0dbd3cefb4b3260d679 |
| spellingShingle | TP Chemical technology Moawia, R. M. Nasef, M. M. Mohamed, N. H. Ripin, A. Modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate |
| title | Modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate |
| title_full | Modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate |
| title_fullStr | Modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate |
| title_full_unstemmed | Modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate |
| title_short | Modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate |
| title_sort | modification of flax fibres by radiation induced emulsion graft copolymerization of glycidyl methacrylate |
| topic | TP Chemical technology |
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