利用红素结构和反应性来设计具有控制动态与非动态键的比率的玻璃体
Antoine Duval1,2, Wissam Benali1, Luc Avérous1
1BioTeam/ICPEES-ECPM, UMR CNRS 7515, Université de Strasbourg, 25 rue Becquerel, 67087, Strasbourg, Cedex 2, France.
ChemSusChem
|September 11, 2024
概括
这项研究修改了Kraft素,以创建可适应的玻璃体网络. 引入非动态链接可以提高这些生物基芳聚合物的可回收性和抗爬行性.
科学领域:
- 聚合物化学 聚合物化学
- 材料科学 材料科学 材料科学
- 生物质的价值化 生物质的价值化
背景情况:
- 素是一种可再生的芳香原料,含有丰富的基 (Al-OH,Ph-OH) 和碳酸盐 (COOH).
- 交叉连接的聚合物网络需要循环生物经济的终生考虑.
- 玻璃剂通过动态共价键提供了增强的可回收性.
研究的目的:
- 为了化学修改Kraft质素,以控制其COOH/Ph-OH比率.
- 通过修饰的素和二氧化物合成混合的玻璃体网络.
- 调查非动态链接对玻璃物质性质和再加工能力的影响.
主要方法:
- 实力素被酸无水化功能化,控制了COOH/Ph-OH的比率.
- 混合玻璃体网络是通过与二氧化物交叉连接修改的素来合成的.
- 分析了材料的性能,包括动态性和爬行阻力.
主要成果:
- 成功制备了可调节的COOH/Ph-OH比率的改性素.
- 合成了含有动态和非动态以太键的混合玻璃体网络.
- 非动态链接增加了债券交换的激活能量,但并没有阻碍再处理能力.
- 在存在非动态链接的情况下,观察到增强的爬行阻力.
结论:
- 控制地引入非动态链接是一种可行的策略,以增强基于素的玻璃制剂.
- 这些适应性强的材料表现出更好的性能,包括再加工能力和抗爬行能力.
- 基于素的玻璃体是可持续和可回收的芳香聚合物的一个有希望的方向.
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