Preparation and characterization of an imogolite/chitosan hybrid with pyridoxal-5′-phosphate as an interfacial modifier

Imogolite/chitosan hybrid films were prepared using pyridoxal-5′-phosphate (PLP) as an interfacial modifier. Thermogravimetric analysis and spectroscopic measurements revealed that the phosphate group of PLP was adsorbed on the imogolite. Furthermore, rheological measurements suggested that the PLP-...

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Bibliographic Details
Published in:RSC advances 2021-09, Vol.11 (5), p.31712-31716
Main Authors: Mukai, Masaru, Takada, Akihiko, Hamada, Ayumi, Kajiwara, Tomoko, Takahara, Atsushi
Format: Article
Language:English
Subjects:
Chemistry
Chitosan
Imines
Mechanical properties
Rheological properties
Thermogravimetric analysis
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Summary:Imogolite/chitosan hybrid films were prepared using pyridoxal-5′-phosphate (PLP) as an interfacial modifier. Thermogravimetric analysis and spectroscopic measurements revealed that the phosphate group of PLP was adsorbed on the imogolite. Furthermore, rheological measurements suggested that the PLP-modified imogolites (PLP-imogolite) had strong interactions with chitosan in solution. Moreover, UV absorption of the hybrid film showed that PLP and chitosan formed Schiff base linkages. Therefore, the hybrid films exhibited a significant improvement in their mechanical properties compared to those of pristine chitosan/imogolite hybrid films. An eco-friendly hybrid film of chitosan and imogolite was prepared using pyridoxal-5′-phosphate as a surface modifier.
ISSN:2046-2069
2046-2069
DOI:10.1039/d1ra04774d