IMMOBILIZATION OF HUMIC ACID ONTO CHITOSAN USING TOSYLATION METHOD WITH 1,4-BUTANEDIOL AS A SPACER ARM
Immobilization of humic acid (HA) onto chitosan using tosylation method with 1,4-butanediol as 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-phthal...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
Department of Chemistry, Universitas Gadjah Mada
2012-02-01
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Series: | Indonesian Journal of Chemistry |
Subjects: | |
Online Access: | https://jurnal.ugm.ac.id/ijc/article/view/21369 |