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Published in: Cellulose 2/2018

29-12-2017 | Original Paper

Preparing water-soluble 2, 3-dialdehyde cellulose as a bio-origin cross-linker of chitosan

Authors: Xiuzhi Tian, Xue Jiang

Published in: Cellulose | Issue 2/2018

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Abstract

Dialdehyde celluloses (DACs) with smaller nanocrystals were prepared during the oxidization of nanocrystalline cellulose (NCC) using increased NaIO4. When NCC from the hydrolysis of microcrystalline cellulose (64 wt% H2SO4, 45 °C, 1 h) was periodate oxidized at NaIO4/anhydroglucose unit mole ratio of 5 and pH 6.5 for 5 h, the product of DAC5 can easily dissolve in water at ambient temperature. It was adopted as a bio-origin cross-linker of chitosan (CTS). The CTS films cross-linked with 1 ~ 7% DAC5 (relative to the weight of CTS in the dried film) were fabricated by the solution casting technique. FT-IR, XRD and SEM characterizations demonstrated the cross-linking reaction of DAC5 with CTS and the good compatibility between them. The dissolving and mechanical testing results showed that the cross-linked film had improved acid resistance and tensile strength compared to the pure CTS film. They could be applied in the areas of food packaging and biomedical treatments.

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Literature
go back to reference Moreno-Vásquez MJ, Valenzuela-Buitimea EL, Plascencia-Jatomea M, Encinas-Encinas JC, Rodríguez-Félix F, Sánchez-Valdes S, Rosas-Burgos EC, Ocaño-Higuera VM, Graciano-Verdugo AZ (2017) Functionalization of chitosan by a free radical reaction: characterization, antioxidant and antibacterial potential. Carbohydr Polym 155:117–127. https://doi.org/10.1016/j.carbpol.2016.08.056 CrossRef Moreno-Vásquez MJ, Valenzuela-Buitimea EL, Plascencia-Jatomea M, Encinas-Encinas JC, Rodríguez-Félix F, Sánchez-Valdes S, Rosas-Burgos EC, Ocaño-Higuera VM, Graciano-Verdugo AZ (2017) Functionalization of chitosan by a free radical reaction: characterization, antioxidant and antibacterial potential. Carbohydr Polym 155:117–127. https://​doi.​org/​10.​1016/​j.​carbpol.​2016.​08.​056 CrossRef
Metadata
Title
Preparing water-soluble 2, 3-dialdehyde cellulose as a bio-origin cross-linker of chitosan
Authors
Xiuzhi Tian
Xue Jiang
Publication date
29-12-2017
Publisher
Springer Netherlands
Published in
Cellulose / Issue 2/2018
Print ISSN: 0969-0239
Electronic ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-017-1607-0

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