Graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator

The graft copolymerization of methyl acrylate onto sago starch was carried out by a free radical initiating process. The free radicals were produced by the chemical initiation method in which ceric ammonium nitrate was used as an initiator. It was found that the percentages of grafting, grafting eff...

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主要な著者: Rahman, Lutfor, Silong, Sidik, Wan Yunus, Wan Md Zin, Ab. Rahman, Mohamad Zaki, Ahmad @ Ayob, Mansor, Haron, Md. Jelas
フォーマット: 論文
言語:English
English
出版事項: Wiley 2000
オンライン・アクセス:http://psasir.upm.edu.my/id/eprint/40117/1/Graft%20copolymerization%20of%20methyl%20acrylate%20onto%20sago%20starch%20using%20ceric%20ammonium%20nitrate%20as%20an%20initiator.pdf
http://psasir.upm.edu.my/id/eprint/40117/7/J%20of%20Applied%20Polymer%20Sci%20-%202000%20-%20Rahman%20-%20Graft%20copolymerization%20of%20methyl%20acrylate%20onto%20sago%20starch%20using%20ceric%20ammonium.pdf
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author Rahman, Lutfor
Silong, Sidik
Wan Yunus, Wan Md Zin
Ab. Rahman, Mohamad Zaki
Ahmad @ Ayob, Mansor
Haron, Md. Jelas
author_facet Rahman, Lutfor
Silong, Sidik
Wan Yunus, Wan Md Zin
Ab. Rahman, Mohamad Zaki
Ahmad @ Ayob, Mansor
Haron, Md. Jelas
author_sort Rahman, Lutfor
collection UPM
description The graft copolymerization of methyl acrylate onto sago starch was carried out by a free radical initiating process. The free radicals were produced by the chemical initiation method in which ceric ammonium nitrate was used as an initiator. It was found that the percentages of grafting, grafting efficiency, and rate of grafting were all dependent on the concentration of ceric ammonium nitrate (CAN), methyl acrylate (MA), sago starch (AGU), mineral acid (H2SO4), and reaction temperature and period. The variables affecting the graft copolymerization were thoroughly examined. The optimum yield of grafting was obtained when the concentration of CAN, MA, AGU, and H2SO4 were used at 8.77 × 10−3, 0.803, 0.135, and 0.175 mol L−1, respectively. The optimum reaction temperature and period were 50°C and 60 min, respectively. The rate of graft polymerization was explored on the basis of experimental results and reaction mechanism. The evidence of grafted copolymers was investigated by using FTIR spectroscopy, TG, and DSC analysis.
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spelling upm.eprints-401172024-07-24T06:39:33Z http://psasir.upm.edu.my/id/eprint/40117/ Graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator Rahman, Lutfor Silong, Sidik Wan Yunus, Wan Md Zin Ab. Rahman, Mohamad Zaki Ahmad @ Ayob, Mansor Haron, Md. Jelas The graft copolymerization of methyl acrylate onto sago starch was carried out by a free radical initiating process. The free radicals were produced by the chemical initiation method in which ceric ammonium nitrate was used as an initiator. It was found that the percentages of grafting, grafting efficiency, and rate of grafting were all dependent on the concentration of ceric ammonium nitrate (CAN), methyl acrylate (MA), sago starch (AGU), mineral acid (H2SO4), and reaction temperature and period. The variables affecting the graft copolymerization were thoroughly examined. The optimum yield of grafting was obtained when the concentration of CAN, MA, AGU, and H2SO4 were used at 8.77 × 10−3, 0.803, 0.135, and 0.175 mol L−1, respectively. The optimum reaction temperature and period were 50°C and 60 min, respectively. The rate of graft polymerization was explored on the basis of experimental results and reaction mechanism. The evidence of grafted copolymers was investigated by using FTIR spectroscopy, TG, and DSC analysis. Wiley 2000-04 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/40117/1/Graft%20copolymerization%20of%20methyl%20acrylate%20onto%20sago%20starch%20using%20ceric%20ammonium%20nitrate%20as%20an%20initiator.pdf text en http://psasir.upm.edu.my/id/eprint/40117/7/J%20of%20Applied%20Polymer%20Sci%20-%202000%20-%20Rahman%20-%20Graft%20copolymerization%20of%20methyl%20acrylate%20onto%20sago%20starch%20using%20ceric%20ammonium.pdf Rahman, Lutfor and Silong, Sidik and Wan Yunus, Wan Md Zin and Ab. Rahman, Mohamad Zaki and Ahmad @ Ayob, Mansor and Haron, Md. Jelas (2000) Graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator. Journal of Applied Polymer Science, 76 (4). pp. 516-523. ISSN 0021-8995; ESSN: 1097-4628 http://onlinelibrary.wiley.com/doi/10.1002/%28SICI%291097-4628%2820000425%2976:4%3C516::AID-APP9%3E3.0.CO;2-7/abstract 10.1002/(SICI)1097-4628(20000425)76:4<516::AID-APP9>3.0.CO;2-7
spellingShingle Rahman, Lutfor
Silong, Sidik
Wan Yunus, Wan Md Zin
Ab. Rahman, Mohamad Zaki
Ahmad @ Ayob, Mansor
Haron, Md. Jelas
Graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator
title Graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator
title_full Graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator
title_fullStr Graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator
title_full_unstemmed Graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator
title_short Graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator
title_sort graft copolymerization of methyl acrylate onto sago starch using ceric ammonium nitrate as an initiator
url http://psasir.upm.edu.my/id/eprint/40117/1/Graft%20copolymerization%20of%20methyl%20acrylate%20onto%20sago%20starch%20using%20ceric%20ammonium%20nitrate%20as%20an%20initiator.pdf
http://psasir.upm.edu.my/id/eprint/40117/7/J%20of%20Applied%20Polymer%20Sci%20-%202000%20-%20Rahman%20-%20Graft%20copolymerization%20of%20methyl%20acrylate%20onto%20sago%20starch%20using%20ceric%20ammonium.pdf
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