通过内部-协调增强稳定性的乙烯基玻璃剂
Xiaoting Zhang1, Shujuan Wang1, Zikang Jiang1
1School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China.
Journal of the American Chemical Society
|December 17, 2020
概括
新的协调周期性二 (NCB) 连接可以提高聚合物的耐水和耐热性. 这些新的联系使得可再生,自我修复和可再加工的玻璃材料具有更高的稳定性.
科学领域:
- 聚合物化学
- 材料科学
- 有机化学
背景情况:
- 含的聚合物为先进的应用提供独特的特性.
- 具有可逆B-O键的器官物种用于自愈和可再加工的聚合物.
- 传统的酸和酸具有水解不稳定性,限制了它们的使用.
研究的目的:
- 研究协调周期性二 (NCB) 连接的水解稳定性和动态共价化学.
- 开发一种基于NCB连接的新型玻璃制剂,可提高稳定性和再加工性.
- 探索NCB联系的潜力,以设计下一代可持续材料.
主要方法:
- 通过活性与异酸盐的反应合成包含NCB连接的新型玻璃制剂.
- 热力学和动力学研究评估NCB链接的稳定性和交换反应.
- 模型化合物 (NCBC-X1,NCBC-X2) 和由此产生的聚氨/聚氨) 玻璃体的表征.
主要成果:
- 与传统的乙烯相比,NCB连接具有较强的耐水和耐热性.
- 基于NCB连接的玻璃器具有出色的耐溶剂和机械性能.
- 在加热后NCB连接的转使材料的修复,再加工和回收成为可能.
- 在NCB连接中内部的N → B协调有助于提高水解和热稳定性.
结论:
- 对于创建稳定和动态的共价聚合物而言,NCB链接是传统乙烯的有希望的替代品.
- 开发的基于NCB的玻璃器为设计具有可调性特性和延长生命周期的材料提供了可持续的途径.
- 这项工作提供了通过提高水解和热稳定性来推进可持续聚合物的新战略.
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