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以磷酸吡哆醛作为界面改性剂的伊莫戈石/壳聚糖杂化物的制备与表征

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

作者信息

Mukai Masaru, Takada Akihiko, Hamada Ayumi, Kajiwara Tomoko, Takahara Atsushi

机构信息

Institute for Materials Chemistry and Engineering, Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan

Research Center for Negative Emission Technology, Kyushu University 744 Motooka, Nishi-ku Fukuoka 819-0395 Japan.

出版信息

RSC Adv. 2021 Sep 24;11(50):31712-31716. doi: 10.1039/d1ra04774d. eCollection 2021 Sep 21.

DOI:10.1039/d1ra04774d
PMID:35496855
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9041438/
Abstract

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.

摘要

使用5'-磷酸吡哆醛（PLP）作为界面改性剂制备了伊莫戈石/壳聚糖杂化膜。热重分析和光谱测量表明，PLP的磷酸基团吸附在伊莫戈石上。此外，流变学测量表明，PLP改性的伊莫戈石（PLP-伊莫戈石）在溶液中与壳聚糖有很强的相互作用。此外，杂化膜的紫外吸收表明PLP和壳聚糖形成了席夫碱键。因此，与原始壳聚糖/伊莫戈石杂化膜相比，杂化膜的机械性能有了显著改善。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50ca/9041438/e4636a98312c/d1ra04774d-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50ca/9041438/85141444bb88/d1ra04774d-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50ca/9041438/c10e4e9ecd92/d1ra04774d-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50ca/9041438/c53f45903a4e/d1ra04774d-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50ca/9041438/e4636a98312c/d1ra04774d-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50ca/9041438/85141444bb88/d1ra04774d-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50ca/9041438/c10e4e9ecd92/d1ra04774d-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50ca/9041438/c53f45903a4e/d1ra04774d-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/50ca/9041438/e4636a98312c/d1ra04774d-f4.jpg

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