IMMOBiliZATION OF HUMICACID ONTO CHITOSAN USINGTOSYlATION METHOD WITH 1,4-BUTANEDIOl AS A SPACER ARM
Immobilization of humic acid (HA) onto chitosan using tosylation method with 1,4-butanediolas a spacer arm has been evaluated. Chitosan was phthaloylated selectively using phthalic anhydride in dimethylformamide as solvent with addition of 5% water (v/v) as cosolvent prior to be tosylated. N-phthalo...
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[Yogyakarta] : Universitas Gadjah Mada
2011
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| author | Perpustakaan UGM, i-lib |
| author_facet | Perpustakaan UGM, i-lib |
| author_sort | Perpustakaan UGM, i-lib |
| collection | UGM |
| description | Immobilization of humic acid (HA) onto chitosan using tosylation method with 1,4-butanediolas a spacer arm has been evaluated. Chitosan was phthaloylated selectively using phthalic anhydride in dimethylformamide as solvent with addition of 5% water (v/v) as cosolvent prior to be tosylated. N-phthaloyl-chitosan and HA were tosylated using tosyl chloride in excess and triethylamineas catalyst at temperature< 10 °C for 12h. The 6-0-tosyl- N-phthaloyl-chitosan was reacted with 1,4-butanediolin order to obtain a spacer arm attached chitosan. The 6-0- butanol-N-phthaloyl-chitosanwas activatedby reacting with tosyl chloride. For evaluation on immobilizationof HA on
chitosan with and without spacer arm, 6-0-tosylbutane-N-phthaloyl-chitosanwas reacted with HA and the 6-0-tosyl-
N-phthaloyl-chitosanwas reacted with HA. The HA immobilized onto chitosan was characterizedby XRD and FTIR spectrophotometricmethod. The result showed that HA can be immobilized covalently onto chitosan after attaching 1,4-butanediolas spacer arm onto 6-0-tosyl-N-phthaloyl-chitosanand activating the product with tosyl chloride, but HA cannot be reacted directly onto 6-0-tosyl-N-phthaloyl-chitosan. |
| first_indexed | 2024-03-13T19:07:09Z |
| format | Article |
| id | oai:generic.eprints.org:28542 |
| institution | Universiti Gadjah Mada |
| last_indexed | 2024-03-13T19:07:09Z |
| publishDate | 2011 |
| publisher | [Yogyakarta] : Universitas Gadjah Mada |
| record_format | dspace |
| spelling | oai:generic.eprints.org:285422014-06-18T00:23:29Z https://repository.ugm.ac.id/28542/ IMMOBiliZATION OF HUMICACID ONTO CHITOSAN USINGTOSYlATION METHOD WITH 1,4-BUTANEDIOl AS A SPACER ARM Perpustakaan UGM, i-lib Jurnal i-lib UGM Immobilization of humic acid (HA) onto chitosan using tosylation method with 1,4-butanediolas a spacer arm has been evaluated. Chitosan was phthaloylated selectively using phthalic anhydride in dimethylformamide as solvent with addition of 5% water (v/v) as cosolvent prior to be tosylated. N-phthaloyl-chitosan and HA were tosylated using tosyl chloride in excess and triethylamineas catalyst at temperature< 10 °C for 12h. The 6-0-tosyl- N-phthaloyl-chitosan was reacted with 1,4-butanediolin order to obtain a spacer arm attached chitosan. The 6-0- butanol-N-phthaloyl-chitosanwas activatedby reacting with tosyl chloride. For evaluation on immobilizationof HA on chitosan with and without spacer arm, 6-0-tosylbutane-N-phthaloyl-chitosanwas reacted with HA and the 6-0-tosyl- N-phthaloyl-chitosanwas reacted with HA. The HA immobilized onto chitosan was characterizedby XRD and FTIR spectrophotometricmethod. The result showed that HA can be immobilized covalently onto chitosan after attaching 1,4-butanediolas spacer arm onto 6-0-tosyl-N-phthaloyl-chitosanand activating the product with tosyl chloride, but HA cannot be reacted directly onto 6-0-tosyl-N-phthaloyl-chitosan. [Yogyakarta] : Universitas Gadjah Mada 2011 Article NonPeerReviewed Perpustakaan UGM, i-lib (2011) IMMOBiliZATION OF HUMICACID ONTO CHITOSAN USINGTOSYlATION METHOD WITH 1,4-BUTANEDIOl AS A SPACER ARM. Jurnal i-lib UGM. http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11605 |
| spellingShingle | Jurnal i-lib UGM Perpustakaan UGM, i-lib IMMOBiliZATION OF HUMICACID ONTO CHITOSAN USINGTOSYlATION METHOD WITH 1,4-BUTANEDIOl AS A SPACER ARM |
| title | IMMOBiliZATION OF HUMICACID ONTO CHITOSAN USINGTOSYlATION METHOD WITH 1,4-BUTANEDIOl AS A SPACER ARM |
| title_full | IMMOBiliZATION OF HUMICACID ONTO CHITOSAN USINGTOSYlATION METHOD WITH 1,4-BUTANEDIOl AS A SPACER ARM |
| title_fullStr | IMMOBiliZATION OF HUMICACID ONTO CHITOSAN USINGTOSYlATION METHOD WITH 1,4-BUTANEDIOl AS A SPACER ARM |
| title_full_unstemmed | IMMOBiliZATION OF HUMICACID ONTO CHITOSAN USINGTOSYlATION METHOD WITH 1,4-BUTANEDIOl AS A SPACER ARM |
| title_short | IMMOBiliZATION OF HUMICACID ONTO CHITOSAN USINGTOSYlATION METHOD WITH 1,4-BUTANEDIOl AS A SPACER ARM |
| title_sort | immobilization of humicacid onto chitosan usingtosylation method with 1 4 butanediol as a spacer arm |
| topic | Jurnal i-lib UGM |
| work_keys_str_mv | AT perpustakaanugmilib immobilizationofhumicacidontochitosanusingtosylationmethodwith14butanediolasaspacerarm |