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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2015
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oai:psasir.upm.edu.my:35012 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, |
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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). |
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Article |
| author |
Md Jamil, Siti Nurul Ain Khairuddin, Mastura Daik, Rusli |
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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 |
| author_facet |
Md Jamil, Siti Nurul Ain Khairuddin, Mastura Daik, Rusli |
| author_sort |
Md Jamil, Siti Nurul Ain |
| title |
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_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_sort |
preparation of acrylonitrile/acrylamide copolymer beads via a redox method and their adsorption properties after chemical modification |
| publisher |
Walter de Gruyter |
| publishDate |
2015 |
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1819295742792040448 |
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13.4562235 |