粉在氧功能化的离子液体水溶液中溶解和再生
Xiaoyan Tan1, Yitao Huang2, Umair Muhammad3
1College of Pharmacy, Shenzhen Technology University, Shenzhen 518118, China; College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China.
International journal of biological macromolecules
|March 11, 2024
概括
研究人员探索了基功能化的离子液体,用于粉溶解. 合成的离子液体1-(2,3-dihydroxypropyl) -3-methylimidazole化物 ([Dhpmim][Cl]) 有效地溶解了粉,显示了材料生产的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
- 聚合物化学 聚合物化学
背景情况:
- 有效的粉溶解对于其修改和生产先进材料至关重要.
- 传统的溶剂经常引起环境问题,推动寻找可持续的替代品.
- 基功能化的离子液体 (ILs) 是一个有前途的途径,因为它们的调节性质和高效生物质处理的潜力.
研究的目的:
- 为了研究合成的基基功能化的离子液体,1-(2,3-二基) -3-甲基利米达化物 ([Dhpmim][Cl]) 的有效性,作为粉的溶剂.
- 确定粉溶解在[Dhpmim][Cl]及其水性混合物中的最佳条件.
- 分析从离子液溶剂系统中再生的粉的结构和热性质.
主要方法:
- 合成基基功能化的离子液体1-(2,3-二基) -3-甲基利米达化物 ([Dhpmim][Cl]).
- 在干净的[Dhpmim][Cl]及其水性混合物中进行粉溶解实验,其度和温度各不相同.
- 使用X射线衍射 (XRD) 和微分扫描热量计 (DSC) 等技术对再生粉进行表征.
- 密度函数理论 (DFT) 模拟以了解溶剂-溶解物相互作用.
主要成果:
- 在[Dhpmim][Cl]中完全溶解了5.35%重量%的粉,在100°C时2小时内实现了完全溶解.
- 在[Dhpmim][Cl]-水混合物中的粉溶解度初步增加,随后随着含水量的增加而下降,在1: 9水:IL比率 (9.28 wt%) 上具有最佳溶解度.
- 再生粉保留了其分子结构,但表现出从A型转变为V型结晶度,相对结晶度降低 (12.4%) 和热稳定性比原生粉 (25.2%).
结论:
- 基功能化的离子液体[Dhpmim][Cl]及其水溶液是粉溶解的有效溶剂.
- [Dhpmim][Cl]溶剂系统可以在没有化学衍生物的情况下促进粉的修饰.
- 观察到的再生粉晶度和热稳定性的变化凸显了通过基于IL的加工来定制粉特性的潜力.
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