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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Format: | Article NonPeerReviewed |
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[Yogyakarta] : Universitas Gadjah Mada
2011
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Online Access: | https://repository.ugm.ac.id/28542/ http://i-lib.ugm.ac.id/jurnal/download.php?dataId=11605 |
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Institution: | Universitas Gadjah Mada |