Preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification
Poly(acrylonitrile-co-acrylamide) [poly(AN-co- AM)] was prepared via a redox method, with sodium bisulfite and potassium persulphate as the initiators. High yield was attained in up to 76% of monomer conversion within 3 h of reaction time. The copolymers were then chemically modified with hydroxylam...
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| Format: | Article |
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Walter de Gruyter
2015
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| author | Md Jamil, Siti Nurul Ain Khairuddin, Mastura Daik, Rusli |
| author_facet | Md Jamil, Siti Nurul Ain Khairuddin, Mastura Daik, Rusli |
| author_sort | Md Jamil, Siti Nurul Ain |
| collection | UPM |
| description | Poly(acrylonitrile-co-acrylamide) [poly(AN-co- AM)] was prepared via a redox method, with sodium bisulfite and potassium persulphate as the initiators. High yield was attained in up to 76% of monomer conversion within 3 h of reaction time. The copolymers were then chemically modified with hydroxylamine hydrochloride to obtain amidoxime functional groups in the polyacrylonitrile (PAN) system. The role of the amidoxime group is to form a chelating ion-exchange network based on acrylonitrile for the adsorption of heavy metal ions in aqueous solution. Based on the Fourier transform infrared spectra, the appearance of a strong band at the regions of 1680 and 3300–3400 cm-1 due to the stretching vibration of C=O and NH2 groups, respectively, confirmed the copolymerization of acrylamide into the PAN system. In the case of modified copolymers, there was an appearance of broad bands at the regions of ∼3300 and ∼900 cm-1, which corresponded to the stretching vibrations of O-H and =N-O, respectively, from the oxime group. The scanning electron microscopy showed that the average size of the copolymer particles was ∼149 nm, and the average size increased to ∼217 nm in the case of the modified copolymer. The amidoximed poly(AN-co-AM) was analyzed by inductively coupled plasma to investigate its adsorption behavior toward Cu(II). |
| first_indexed | 2024-03-06T08:31:00Z |
| format | Article |
| id | upm.eprints-35012 |
| institution | Universiti Putra Malaysia |
| last_indexed | 2024-03-06T08:31:00Z |
| publishDate | 2015 |
| publisher | Walter de Gruyter |
| record_format | dspace |
| spelling | upm.eprints-350122015-12-28T08:41:19Z http://psasir.upm.edu.my/id/eprint/35012/ Preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification Md Jamil, Siti Nurul Ain Khairuddin, Mastura Daik, Rusli Poly(acrylonitrile-co-acrylamide) [poly(AN-co- AM)] was prepared via a redox method, with sodium bisulfite and potassium persulphate as the initiators. High yield was attained in up to 76% of monomer conversion within 3 h of reaction time. The copolymers were then chemically modified with hydroxylamine hydrochloride to obtain amidoxime functional groups in the polyacrylonitrile (PAN) system. The role of the amidoxime group is to form a chelating ion-exchange network based on acrylonitrile for the adsorption of heavy metal ions in aqueous solution. Based on the Fourier transform infrared spectra, the appearance of a strong band at the regions of 1680 and 3300–3400 cm-1 due to the stretching vibration of C=O and NH2 groups, respectively, confirmed the copolymerization of acrylamide into the PAN system. In the case of modified copolymers, there was an appearance of broad bands at the regions of ∼3300 and ∼900 cm-1, which corresponded to the stretching vibrations of O-H and =N-O, respectively, from the oxime group. The scanning electron microscopy showed that the average size of the copolymer particles was ∼149 nm, and the average size increased to ∼217 nm in the case of the modified copolymer. The amidoximed poly(AN-co-AM) was analyzed by inductively coupled plasma to investigate its adsorption behavior toward Cu(II). Walter de Gruyter 2015-01 Article PeerReviewed Md Jamil, Siti Nurul Ain and Khairuddin, Mastura and Daik, Rusli (2015) Preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification. E-Polymers, 15 (1). pp. 45-54. ISSN 2197-4586; ESSN: 1618-7229 http://www.degruyter.com/dg/viewarticle/j$002fepoly.2015.15.issue-1$002fepoly-2014-0109$002fepoly-2014-0109.xml 10.1515/epoly-2014-0109, |
| spellingShingle | Md Jamil, Siti Nurul Ain Khairuddin, Mastura Daik, Rusli Preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification |
| title | Preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification |
| title_full | Preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification |
| title_fullStr | Preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification |
| title_full_unstemmed | Preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification |
| title_short | Preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification |
| title_sort | preparation of acrylonitrile acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification |
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