Synthesis and characterization of triptycene-based polyimides with tunable high fractional free volume for gas separation membranes
作者:Jennifer R. Wiegand、Zachary P. Smith、Qiang Liu、Christopher T. Patterson、Benny D. Freeman、Ruilan Guo
DOI:10.1039/c4ta02303j
日期:——
Triptycene-containing polyimide membranes with tunable fractional free volume promoting fast gas transport and selective separations.
含有三环芳烃的聚酰亚胺膜,可调节的自由体积分数促进快速气体传输和选择性分离。
Synthesis and properties of novel triptycene-based polyimides
作者:Sheng-Huei Hsiao、Hui-Min Wang、Wen-Jeng Chen、Tzong-Ming Lee、Chyi-Ming Leu
DOI:10.1002/pola.24748
日期:2011.7.15
hydrazine reduction of the dinitro intermediates. The bis(ether amine)s were polymerized with six commercially available aromatic tetracarboxylic dianhydrides to obtain two series of novel triptycene‐based polyimides 8a–f and 9a–f by using a conventional two‐step synthetic method via thermal and chemical imidizations. All the resulting polyimides exhibited high enough molecular weights to permit the casting