基于"乙烯"的纤维素 - 氨酸聚合物点击反应和易于加工的性能
1School of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an 710048, Shaanxi, China.
International journal of biological macromolecules
|April 12, 2025
概括
研究人员开发了一种新型的纤维素 - 克拉 (CK) 聚合物,使用"乙烯"点击反应. 这种新的CK材料为先进的织应用提供了增强的机械性能和功能能力.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物材料是一种生物材料.
背景情况:
- 纤维素和质素是丰富的生物聚合物,具有开发材料的潜力.
- 目前用于纤维素-酸盐复合物的现有方法通常涉及强化学品或导致低于最佳的性能.
研究的目的:
- 开发一种新方法来制备纤维素 - 克拉 (CK) 聚合物.
- 描述合成的CK聚合物的结构和特性.
- 评估CK薄膜和纤维对潜在应用的性能.
主要方法:
- 在/尿素系统中制备基纤维素 (AC).
- 合成CK聚合物通过紫外线启动的AC和角质蛋白 (Ker) 之间的"乙烯"点击反应.
- 使用FTIR,XRD,XPS和NMR进行表征;对薄膜和纤维进行机械测试;对功能性质进行评估.
主要成果:
- 通过光谱和分析技术证实了AC和CK聚合物的成功合成,保持了质蛋白的完整性.
- 与以前的方法相比,CK薄膜具有较高的透射率,密集的形态和出色的灵活性,具有较高的机械强度 (44.93 MPa) 和延伸 (22%) .
- 与同溶剂离子液体方法相比,CK纤维显示出增强的机械性能 (28.8 MPa,15%),以及出色的吸水能力和增加功能的潜力 (光,热色,阻燃).
结论:
- "醇-乙烯"点击反应提供了一条有效的途径,用于新型纤维素-酸盐 (CK) 聚合物.
- 与现有的纤维素蛋白复合材料相比,CK材料具有优越的机械和加工特性.
- 开发的CK纤维显示出对功能性织品具有改善舒适性和附加功能的承诺.
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