## Abstract A series of membranes was prepared by air‐drying the thin layers of __N__‐acyl‐ and __N__‐arylidene‐chitosan gels. Their flow rates of water and permeabilities of various compounds were examined. __N__‐Acylchitosan membranes were stable in both dilute acid and alkali, but __N__‐aryliden
Ultrastructure of chitosan and some gel-forming, branched-chain chitosan derivatives
✍ Scribed by Laurance D. Hall; Mansur Yalpani; Nasser Yalpani
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1981
- Tongue
- English
- Weight
- 713 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0006-3525
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✦ Synopsis
Abstract
Chitosan flakes from shrimp shells and xerogels derived from branched 1‐deoxyglycit‐1‐yl chitosan derivatives were examined by scanning electron microscopy; the former displayed relatively large, dome‐shaped orifices and the latter were found to exhibit a wide variety of ultrastructures, ranging from smooth, nonporous to microporous and microfibrillar. Some correlation between the chemical structure of the side chains of the chitosan derivatives and their microarchitecture could be established.
📜 SIMILAR VOLUMES
## Abstract Ferrocene‐branched chitosan derivatives (CHIT‐Fc) are synthesized by reductive __N__‐alkylation of chitosan with ferrocenecarboxaldehyde. The structures of the products are determined by ^1^H NMR and FT‐IR spectra. CHIT‐Fc is used as a functionalized matrix to immobilize GOD on glassy c