引入CO2与胺的可逆反应,用于非异酸聚氨合成
Sibo Xie1, Yunqi Li1, Yang Chai1
1Department of Polymeric Materials & Engineering, College of Materials & Metallurgy, Guizhou University, Huaxi District, Guiyang 550025, P.R. China.
ACS macro letters
|December 13, 2023
概括
这项研究引入了一种新方法,用于使用捕获的二氧化碳 (CO2) 来制造更绿色的非异酸聚氨 (NIPU),以合成用于先进聚合物应用的新型单体.
科学领域:
- 聚合物化学 聚合物化学
- 绿色化学 绿色化学
- 有机合成 有机合成
背景情况:
- 非异酸聚氨 (NIPU) 为传统聚氨提供了一个可持续的替代品.
- 开发高效的单体合成路径对于推进NIPU技术至关重要.
- 二氧化碳 (CO2) 的利用为环保化学工艺提供了机会.
研究的目的:
- 开发一种用于从CO2中合成α,ω-二烯功能化碳酸单体的多功能方法.
- 探索这些新型单体的聚合成各种NIPU.
- 通过聚合后修改来证明NIPU属性的可调性.
主要方法:
- 利用二氧化碳和二胺之间的可逆反应,由有机超基催化,以在位形成碳酸盐.
- 采用NMR和现场FTIR光谱来确认CO2激活和中间体的形成.
- 进行了硫乙烯和环二烯转化合成 (ADMET) 聚合,以合成NIPU.
- 研究了聚合后的氧化和化,以改变性能.
主要成果:
- 通过捕获和转化CO2成功合成了α,ω-二烯功能化碳酸盐单体.
- 生产的聚乙和不和的高产量的芳香性-亚利法性聚氨.
- 在NIPU中实现的玻璃过渡温度范围为-26.8至-1.1°C.
- 已被证明成功转化为聚硫尿和和聚氨,具有调节性质.
结论:
- 建立了一个用于将二氧化碳转化为功能性NIPU单体的实用工具箱.
- 强调了这些NIPU在需要可调节材料特性的各种应用中的潜力.
- 强调了通过利用二氧化碳对可持续聚合物化学的贡献.
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