Modification of chitosan for preparation of poly(N-isopropylacrylamide/ O-nitrochitosan) interpenetrating polymer network
An interpenetrating polymer network (IPN), N-isopropylacrylamide/O-nitrochitosan (NONK) was developed in the presence of ammonium persulfate using solution polymerization technique. O-nitrochitosan (ONK) was synthesized from chitosan, before it was further reacted with N-isopropylacrylamide. A new v...
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| Format: | Article |
| Language: | English |
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Universiti Kebangsaan Malaysia
2015
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| Online Access: | http://journalarticle.ukm.my/8985/ http://journalarticle.ukm.my/8985/1/11_N.A._Rahman.pdf |
| _version_ | 1848811948619071488 |
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| author | Rahman, N.A. Hanifah, S.A. Zani, A.M.N. Ahmad, A. |
| author_facet | Rahman, N.A. Hanifah, S.A. Zani, A.M.N. Ahmad, A. |
| author_sort | Rahman, N.A. |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | An interpenetrating polymer network (IPN), N-isopropylacrylamide/O-nitrochitosan (NONK) was developed in the presence of ammonium persulfate using solution polymerization technique. O-nitrochitosan (ONK) was synthesized from chitosan, before it was further reacted with N-isopropylacrylamide. A new vibration of the C-N bond formed between the NH from ONK and the CH2 from NIPAAm was detected at the peak 1154 and 1171 cm-1 using attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy. In the polymerization, the primary amine became a secondary amine and the peaks of the amide I (C=O peak) and amide II (N–H) were broadened. The structure of ONK was confirmed using nuclear magnetic resonance (NMR). At 10°C, the result from swelling test was found that IPN poly(NONK82) had the highest swelling percentage, 1171%, compared to poly (NIPAAm) at 467%. Micrograph from scanning electron microscopy (SEM) indicated the pore size of IPN NONK increased with an increasing ratio of ONK. |
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| format | Article |
| id | oai:generic.eprints.org:8985 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T23:54:31Z |
| publishDate | 2015 |
| publisher | Universiti Kebangsaan Malaysia |
| recordtype | eprints |
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| spelling | oai:generic.eprints.org:89852016-12-14T06:48:38Z http://journalarticle.ukm.my/8985/ Modification of chitosan for preparation of poly(N-isopropylacrylamide/ O-nitrochitosan) interpenetrating polymer network Rahman, N.A. Hanifah, S.A. Zani, A.M.N. Ahmad, A. An interpenetrating polymer network (IPN), N-isopropylacrylamide/O-nitrochitosan (NONK) was developed in the presence of ammonium persulfate using solution polymerization technique. O-nitrochitosan (ONK) was synthesized from chitosan, before it was further reacted with N-isopropylacrylamide. A new vibration of the C-N bond formed between the NH from ONK and the CH2 from NIPAAm was detected at the peak 1154 and 1171 cm-1 using attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy. In the polymerization, the primary amine became a secondary amine and the peaks of the amide I (C=O peak) and amide II (N–H) were broadened. The structure of ONK was confirmed using nuclear magnetic resonance (NMR). At 10°C, the result from swelling test was found that IPN poly(NONK82) had the highest swelling percentage, 1171%, compared to poly (NIPAAm) at 467%. Micrograph from scanning electron microscopy (SEM) indicated the pore size of IPN NONK increased with an increasing ratio of ONK. Universiti Kebangsaan Malaysia 2015-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8985/1/11_N.A._Rahman.pdf Rahman, N.A. and Hanifah, S.A. and Zani, A.M.N. and Ahmad, A. (2015) Modification of chitosan for preparation of poly(N-isopropylacrylamide/ O-nitrochitosan) interpenetrating polymer network. Sains Malaysiana, 44 (7). pp. 995-1001. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid44bil7_2015/KandunganJilid44Bil7_2015.html |
| spellingShingle | Rahman, N.A. Hanifah, S.A. Zani, A.M.N. Ahmad, A. Modification of chitosan for preparation of poly(N-isopropylacrylamide/ O-nitrochitosan) interpenetrating polymer network |
| title | Modification of chitosan for preparation of poly(N-isopropylacrylamide/
O-nitrochitosan) interpenetrating polymer network |
| title_full | Modification of chitosan for preparation of poly(N-isopropylacrylamide/
O-nitrochitosan) interpenetrating polymer network |
| title_fullStr | Modification of chitosan for preparation of poly(N-isopropylacrylamide/
O-nitrochitosan) interpenetrating polymer network |
| title_full_unstemmed | Modification of chitosan for preparation of poly(N-isopropylacrylamide/
O-nitrochitosan) interpenetrating polymer network |
| title_short | Modification of chitosan for preparation of poly(N-isopropylacrylamide/
O-nitrochitosan) interpenetrating polymer network |
| title_sort | modification of chitosan for preparation of poly(n-isopropylacrylamide/
o-nitrochitosan) interpenetrating polymer network |
| url | http://journalarticle.ukm.my/8985/ http://journalarticle.ukm.my/8985/ http://journalarticle.ukm.my/8985/1/11_N.A._Rahman.pdf |