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新型纤维素基聚合物的合成、表征及生物降解研究。

Synthesis, characterization, and biodegradation studies of new cellulose-based polymers.

机构信息

Laboratory of Applied Chemistry and Environment, Faculty of Sciences, Mohammed First University, 60000, Oujda, Morocco.

Laboratory of Engineering, Electrochemistry, Modeling and Environment, Faculty of Sciences, Sidi Mohamed Ben Abdellah University, 30000, Fez, Morocco.

出版信息

Sci Rep. 2023 Jan 30;13(1):1673. doi: 10.1038/s41598-023-28298-5.

Abstract

New cellulose carbamates and cellulose acetate carbamates were prepared by classical addition reaction of isocyanates with alcohols. A Telomerization technique was used to make the grafted molecules strongly anchored and more hydrophobic. These molecules were grafted into cellulose and CA chains, respectively. The structures of the synthesized derivatives were confirmed using Nuclear Magnetic Resonance Spectroscopy, Fourier Transform Infrared and Thermogravimetric Analysis, and their solubility phenomenon was also established, and the carbamate derivatives showed better solubility compared to cellulose. Their ability to biodegrade was investigated, and it was concluded that Cell-P and CA-P derivatives are more biodegradable than the other samples. These results suggest that the resulting compounds can be used effectively in many useful industrial fields, for instance, eco-friendly food packaging, domains that use materials that are environmentally friendly and sustainable and the development of green chemistry.

摘要

新型纤维素氨基甲酸酯和醋酸纤维素氨基甲酸酯是通过异氰酸酯与醇的经典加成反应制备的。采用齐聚技术使接枝分子牢固锚定并具有更强的疏水性。这些分子分别接枝到纤维素和 CA 链上。使用核磁共振波谱、傅里叶变换红外光谱和热重分析确认了所合成衍生物的结构,并确定了它们的溶解现象,与纤维素相比,氨基甲酸酯衍生物具有更好的溶解性。研究了它们的生物降解能力,得出 Cell-P 和 CA-P 衍生物比其他样品更具生物降解性。这些结果表明,所得到的化合物可以有效地用于许多有用的工业领域,例如环保型食品包装、使用环保和可持续材料的领域以及绿色化学的发展。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/782c/9887067/dffb35860331/41598_2023_28298_Fig1_HTML.jpg

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