A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions

A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions

A novel rapid ion colorimetric sensing material for iron(III) ions was developed from poly(γ-glutamic acid) and 3,4-dihydro-3-(2′-ethyl hydroxyl)-6-ethyl-1,3,2H-benzoxazine (ethyl-Bx). The benzoxazine as an ionophore segment was grafted into γ-PGA backbone via the esterification reaction, which is a...

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Main Authors: Nu-orn Choothong, Attaphon Kaewvilai, Apirat Laobuthee, Amornrat Lertworasirikul
Format: Article
Language:English
Published: Universiti Kebangsaan Malaysia 2013
Online Access:http://journalarticle.ukm.my/5908/
http://journalarticle.ukm.my/5908/
http://journalarticle.ukm.my/5908/1/16%2520Nu-Orn%2520Choothong.pdf
id ukm-5908
recordtype eprints
spelling ukm-59082016-12-14T06:39:50Z http://journalarticle.ukm.my/5908/ A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions Nu-orn Choothong, Attaphon Kaewvilai, Apirat Laobuthee, Amornrat Lertworasirikul, A novel rapid ion colorimetric sensing material for iron(III) ions was developed from poly(γ-glutamic acid) and 3,4-dihydro-3-(2′-ethyl hydroxyl)-6-ethyl-1,3,2H-benzoxazine (ethyl-Bx). The benzoxazine as an ionophore segment was grafted into γ-PGA backbone via the esterification reaction, which is a simple and effective reaction. The structure of γ-PGA-graft-ethyl-Bx was characterized by using FT-IR and 1H-NMR. The most attainable degree of conversion was 25%. The γ-PGA-graft-ethyl-Bx showed a highly selective and sensitive recognition toward iron(III), which was clearly observable with the naked eye. The iron(III) ions sensing property of γ-PGA-graft-ethyl-Bx was further examined by using photometric titration method. After the interaction between the γ-PGA-graft-ethyl-Bx and iron(III) ions was formed, the solution of the polymer in dimethyl sulfoxide was changed from clear and colorless to red color, resulting in the shift of the maximum wavelength from UV to visible range. Universiti Kebangsaan Malaysia 2013-02 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/5908/1/16%2520Nu-Orn%2520Choothong.pdf Nu-orn Choothong, and Attaphon Kaewvilai, and Apirat Laobuthee, and Amornrat Lertworasirikul, (2013) A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions. Sains Malaysiana, 42 (2). pp. 223-229. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type Digital Repository
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institution Universiti Kebangasaan Malaysia
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language English
description A novel rapid ion colorimetric sensing material for iron(III) ions was developed from poly(γ-glutamic acid) and 3,4-dihydro-3-(2′-ethyl hydroxyl)-6-ethyl-1,3,2H-benzoxazine (ethyl-Bx). The benzoxazine as an ionophore segment was grafted into γ-PGA backbone via the esterification reaction, which is a simple and effective reaction. The structure of γ-PGA-graft-ethyl-Bx was characterized by using FT-IR and 1H-NMR. The most attainable degree of conversion was 25%. The γ-PGA-graft-ethyl-Bx showed a highly selective and sensitive recognition toward iron(III), which was clearly observable with the naked eye. The iron(III) ions sensing property of γ-PGA-graft-ethyl-Bx was further examined by using photometric titration method. After the interaction between the γ-PGA-graft-ethyl-Bx and iron(III) ions was formed, the solution of the polymer in dimethyl sulfoxide was changed from clear and colorless to red color, resulting in the shift of the maximum wavelength from UV to visible range.
format Article
author Nu-orn Choothong,
Attaphon Kaewvilai,
Apirat Laobuthee,
Amornrat Lertworasirikul,
spellingShingle Nu-orn Choothong,
Attaphon Kaewvilai,
Apirat Laobuthee,
Amornrat Lertworasirikul,
A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions
author_facet Nu-orn Choothong,
Attaphon Kaewvilai,
Apirat Laobuthee,
Amornrat Lertworasirikul,
author_sort Nu-orn Choothong,
title A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions
title_short A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions
title_full A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions
title_fullStr A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions
title_full_unstemmed A novel colorimetric sensing material, poly(g-Glutamic acid)-graft-3,4-Dihydro-3-(2¢-ethyl hydroxyl)-6-Ethyl-1,3,2H-Benzoxazine (g-PGA-graft-ethyl-Bx), for Iron(III) ions
title_sort novel colorimetric sensing material, poly(g-glutamic acid)-graft-3,4-dihydro-3-(2¢-ethyl hydroxyl)-6-ethyl-1,3,2h-benzoxazine (g-pga-graft-ethyl-bx), for iron(iii) ions
publisher Universiti Kebangsaan Malaysia
publishDate 2013
url http://journalarticle.ukm.my/5908/
http://journalarticle.ukm.my/5908/
http://journalarticle.ukm.my/5908/1/16%2520Nu-Orn%2520Choothong.pdf
first_indexed 2023-09-18T19:45:29Z
last_indexed 2023-09-18T19:45:29Z
_version_ 1777405871758770176

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