扭曲应变启用环开放聚合,向具有化学可回收性的轴状状半芳香聚合物转化
Qing Cao1, Yi-Min Tu1, Hua-Zhong Fan1
1National Engineering Laboratory of Eco-Friendly Polymeric Materials (Sichuan), College of Chemistry, Sichuan University, 29 Wangjiang Rd, Chengdu, 610064, P. R. China.
Angewandte Chemie (International ed. in English)
|February 15, 2024
概括
化学可回收聚合物是从一种新型单体中开发出来的,使得高性能材料成为可能. 这些聚合物形成立体复合体并有效地脱聚合,解决塑料污染问题.
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
- 可持续化学 可持续化学
背景情况:
- 解决塑料污染和能源危机需要创新,可回收的聚合物解决方案.
- 轴性性聚合物提供独特的材料特性,但面临着单体设计的挑战.
研究的目的:
- 通过单体设计开发新型,化学可回收的聚合物.
- 创建具有增强材料性能和可回收性的轴性性聚合物.
主要方法:
- 设计和合成一个二甲基替代的二甲基融合循环单体 (Me-DBO).
- 对Me-DBO进行受控的环开聚合,产生聚合物P ((Me-DBO).
- 聚合物性质的表征,包括玻璃过渡温度 (Tg) 和立体复合物形成.
主要成果:
- Me-DBO聚合产生了P(Me-DBO) 的高Tg (>100°C).
- 酸P ((Me-DBO) 形成了半晶状的立体复合体,化温度高于300°C.
- P(Me-DBO) 证明了高效的去聚合回归单体,表明了出色的可回收性.
结论:
- 新型轴性性聚合物可以从可化学回收的单体合成.
- 立体复合体的形成显著增强了热性能.
- 这种方法为可持续的聚合物开发和塑料废物减少提供了一个有希望的战略.
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