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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Main Authors:	Rahman, N.A., Hanifah, S.A., Zani, A.M.N., Ahmad, A.
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2015
Online Access:	http://journalarticle.ukm.my/8985/ http://journalarticle.ukm.my/8985/ http://journalarticle.ukm.my/8985/1/11_N.A._Rahman.pdf

id	ukm-8985
recordtype	eprints
spelling	ukm-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
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
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.
format	Article
author	Rahman, N.A. Hanifah, S.A. Zani, A.M.N. Ahmad, A.
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
author_facet	Rahman, N.A. Hanifah, S.A. Zani, A.M.N. Ahmad, A.
author_sort	Rahman, N.A.
title	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_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_sort	modification of chitosan for preparation of poly(n-isopropylacrylamide/ o-nitrochitosan) interpenetrating polymer network
publisher	Universiti Kebangsaan Malaysia
publishDate	2015
url	http://journalarticle.ukm.my/8985/ http://journalarticle.ukm.my/8985/ http://journalarticle.ukm.my/8985/1/11_N.A._Rahman.pdf
first_indexed	2023-09-18T19:53:41Z
last_indexed	2023-09-18T19:53:41Z
_version_	1777406387950714880

Modification of chitosan for preparation of poly(N-isopropylacrylamide/ O-nitrochitosan) interpenetrating polymer network

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