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通过酸触发溶解-再生和降解的纤维素纳米球的可控自组装

Bingrui Liu¹, Yuyan Li¹, Yuan Yuan¹

¹Key Laboratory of Rubber-Plastics, Ministry of Education, School of Polymer Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, China.

International journal of biological macromolecules

|June 1, 2023

概括

酸有效地在短短4小时内从棉中产生纤维素纳米圈 (CNS). 与其他方法相比,这些CNS表现出增强的热稳定性和更高的结晶性.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
聚合物化学聚合物化学

背景情况:

纤维素纳米圈 (CNS) 越来越多地使用酸作为强酸的安全替代品生产.
现有的方法通常需要长时间的水解时间超过12小时和机械辅助.

研究的目的:

通过酸水解从天然棉花纸中合成纤维素纳米圈 (CNS).
为了优化中枢神经系统的生产时间和控制颗粒大小.
描述合成的中枢神经系统的结构,晶体和热性质.

主要方法:

自然棉花纸的酸水解.
控制水解时间 (4-11小时) 来影响颗粒大小.
冷干燥以获得粉状的中枢神经系统样本.
使用技术来确定纤维素结构,结晶度指数和热稳定性的表征.

主要成果:

将CNS生产时间缩短到4小时.
可调节的中枢神经系统粒子大小从530nm到1.3μm不等.
合成的中枢神经系统具有高结晶度指数 (70-75%) 的纤维素II结构.
酸化中枢神经系统的热稳定性明显高于硫酸化对应物.

结论:

酸水解为中枢神经系统生产提供了一种高效且节省时间的方法.
该过程允许控制中枢神经系统的大小,并产生具有优越热稳定性和结晶性的材料.
为中枢神经系统的自我组装提出了一种溶解再生和降解机制.

关键词:

酸化水解是酸的水解.自动组装的自动组装球形纤维素纳米晶体球形纤维素纳米晶体

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