., Suharso Synthesis of a Novel Calix[4]resorcinarene-Chitosan Hybrid. ORIENTAL JOURNAL OF CHEMISTRY, 34 (1). pp. 30-37. ISSN 0970-020 X
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Abstract
Synthesis of a novel calix[4]resorcinarene-chitosan hybrid using vanillin as raw material has been conducted. The synthesis was carried out in four steps i.e. (1) allylation of vanillin, (2) HCl-catalyzed condensation allyl vanillin with resorcinol, (3) chloromethylation of C-4-allyloxy-3-methoxyphenylcalix[4] resorcinarene with paraformaldehyde and HCl in the presence of ZnCl2 to yield tetrakis-chloromethyl-C-4-allyloxy-3 methoxyphenylcalix[4] resorcinarene, and (4) reaction of tetrakis-chloromethyl-C-4-allyloxy-3-methoxyphenylcalix[4] resorcinarene with chitosan to yield calixarene-chitosan hybrid. Structure elucidation of products were performed using FT-IR, 1H-NMR, 13C-NMR, GC-MS, XRD, and SEM. The product of calixarene-chitosan hybrid was obtained as dark red solid with m.p. > 300 °C in 78% yield.
| Item Type: | Article |
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| Subjects: | Q Science > QD Chemistry |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Kimia |
| Depositing User: | SUHARSO |
| Date Deposited: | 31 Oct 2018 02:47 |
| Last Modified: | 31 Oct 2018 02:47 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/9100 |
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