绿色合成的紫外线反应性聚碳酸从levoglucosenone和5-hydroxymethylfurfuralal的绿色合成
Aihemaiti Kayishaer1, Mattia Annatelli2, Chloe M Hansom1
1URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, 3 Rue des Rouges-Terres, Pomacle, 51110, France.
Macromolecular rapid communications
|October 25, 2023
概括
这项研究从纤维素衍生物中合成了完全可再生的聚碳酸盐,使用廉价的催化剂实现了高分子量. 观察到独特的紫外线诱导的结构变化,为新型功能材料铺平了道路.
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
- 绿色化学 绿色化学
背景情况:
- 可再生聚合物对于可持续材料开发至关重要.
- 生物基平台分子为石油衍生的单体提供了替代品.
- 开发新型生物基聚合物的高效合成路径至关重要.
研究的目的:
- 合成完全可再生的聚碳酸盐从基于纤维素的高糖 (LGO) 和2,5-bis甲 (BHMF).
- 研究催化剂对聚合物特性的影响,并探索新型材料的功能.
- 为了实现无溶剂聚合,以实现环保的工艺.
主要方法:
- 来自LGO的含有烯醇的三醇 (Triol-citro) 和BHMF的二甲基碳酸衍生物 (BHMF-DC) 的合成.
- 使用各种金属催化剂进行无溶剂聚合,重点是碳酸 (Na2CO3).
- 通过核磁共振 (NMR) 进行表征,并研究紫外线诱导的结构变化.
主要成果:
- 使用Na2CO3作为催化剂获得高分子量聚碳酸盐 (高达755kDa).
- 通过NMR证实了环的成功结合和终端双键的保留.
- 紫外线辐射诱导了高分子网络中前所未有的三种不同的结构的形成.
结论:
- 完全可再生的聚碳酸盐可以有效地用廉价的催化剂从LGO和BHMF合成.
- 由此产生的聚合物对紫外线有独特的结构反应,为新型功能材料提供了潜力.
- 这项工作促进了从生物质来源的资源中开发具有可调节性质的可持续聚合物的发展.
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