Ni(0) /NHC介导的协调不成比例聚合芳香二甲到高性能聚合物的聚合
Haoran Zhang1, Ya Su1, Xiaoyan Tang1
1Beijing National Laboratory for Molecular Sciences, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Center for Soft Matter Science and Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
Journal of the American Chemical Society
|February 16, 2026
概括
一种新的协调不成比例聚合 (CDP) 方法从二甲中合成高性能芳香聚. 这种Ni{0}/N-异环碳素 (NHC) 催化过程提供了无副产品的合成和增强的热和水解稳定性.
科学领域:
- 聚合物化学 聚合物化学
- 有机合成 有机合成
- 材料科学 材料科学 材料科学
背景情况:
- 传统的多重凝聚方法在温和条件下合成高性能芳香聚合物时面临着挑战.
- 开发高效和可持续的聚合技术对于先进材料至关重要.
研究的目的:
- 报告一种用于芳香聚合成的新型Ni(0) /N-异环碳素 (NHC) 催化协调不成比例聚合 (CDP) 方法.
- 为了实现从芳香二甲基中直接无副产品合成高摩尔质聚.
- 为了实现具有增强的热稳定性,水解性耐受性和可回收性的聚合物.
主要方法:
- 采用Ni{0}/N-异环碳素 (NHC) 催化协调不成比例聚合 (CDP).
- 使用易于获得的芳香二甲基化物作为单体.
- 调整了NHC连接体特性,以控制聚合平衡,并抑制诸如素凝结等副作用.
主要成果:
- 从芳香二甲基中实现直接,无副产品的高摩尔质聚的合成.
- 合成的序列失序聚合物具有高热稳定性 (Td,5%高达370°C) 和玻璃过渡温度>100°C.
- 在性有机溶剂中表现出异常的水解稳定性 (pH 0-14) 和可调节的可降解性.
结论:
- 协调不成比例聚合 (CDP) 是合成高性能芳香聚合物的通用平台.
- 开发的方法为具有优越耐热性和耐久性的聚烯提供了一条可持续的途径.
- 在材料耐用性和生命周期结束后可回收利用性之间实现了最佳平衡.
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