不寻常的3,4-氧化合聚合在1,2,5-Trisubstituted Pyrroles上用于新型多孔有机聚合物
Qiong Jia1, Xiaohua Ma2, Hanyuan Chen1
1School of Materials Science and Engineering, Experimental Center for Advanced Materials, Beijing Institute of Technology, No.5, Zhongguancun South Street, Beijing 100081, P. R. China.
ACS macro letters
|September 21, 2023
概括
一种新的聚合方法创造了具有层次性孔隙结构的多孔性有机聚合物 (POP). 这些基于聚烯的POPs显著提高了膜中的气体分离性能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
背景情况:
- 多孔有机聚合物 (POPs) 为特定应用提供可调节的特性.
- 基于Pyrrole的聚合物由于其多功能性而引起人们的兴趣.
研究的目的:
- 开发一种新的聚合技术,用于制造线性多聚-3,4.4.
- 为了合成和表征具有层次性多孔性的基于聚烯的POPs (PY-POPs).
- 为了研究PY-POPs在混合矩阵膜中用于气体分离的性能.
主要方法:
- 开发了一种不寻常的3,4-聚合方法,用于1,2,5-三替代的.
- 合成了一系列的PY-POPs (PY-POP-1-4).
- 针对BET表面积和孔隙结构的PY-POPs的特征.
- 通过将PY-POPs合到聚硫矩阵中来制造混合矩阵膜.
主要成果:
- 实现了线性多聚-3,4 (Mn=20000,PDI=1.7) 的高效合成.
- PY-POPs表现出高BET表面面积高达762 m2g-1与中微微超微的层次孔.
- 增强膜显示出高的H2/N2选择性 (84.6) 和CO2/CH4 (46.8) 和CO2/N2 (39.6) 的选择性.
结论:
- 这种新型的聚合方式提供了一条有效的途径,以功能性聚烯基基 POPs.
- 层次性多孔的PY-POPs是有效的剂,可以增强基于膜的气体分离.
- 这些材料显示出先进气体分离技术的巨大潜力.
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