基于苯并三蝶烯的高渗透性固有微孔聚合物。

Highly Permeable Benzotriptycene-Based Polymer of Intrinsic Microporosity.

作者信息

Rose Ian, Carta Mariolino, Malpass-Evans Richard, Ferrari Maria-Chiara, Bernardo Paola, Clarizia Gabriele, Jansen Johannes C, McKeown Neil B

机构信息

EaStCHEM School of Chemistry, University of Edinburgh, David Brewster Road, Edinburgh EH9 3FJ, U.K.

Institute for Materials and Processes, School of Engineering, The University of Edinburgh, Mayfield Road, Edinburgh EH9 3JL, U.K.

出版信息

ACS Macro Lett. 2015 Sep 15;4(9):912-915. doi: 10.1021/acsmacrolett.5b00439. Epub 2015 Aug 13.

DOI:10.1021/acsmacrolett.5b00439

PMID:35596456

Abstract

A novel polymer of intrinsic microporosity (PIM) was prepared from a diaminobenzotriptycene monomer using a polymerization reaction based on Tröger's base formation. The polymer (PIM-BTrip-TB) demonstrated an apparent Brunauer, Emmet, and Teller (BET) surface area of 870 m g, good solubility in chloroform, excellent molecular mass, high inherent viscosity and provided robust thin films for gas permeability measurements. The polymer is highly permeable (e.g., H = 9980; O = 3290 Barrer) with moderate selectivity (e.g., H/N = 11.0; O/N = 3.6) so that its data lie over the 2008 Robeson upper bounds for the H/N, O/N, and H/CH gas pairs and on the upper bound for CO/CH. On aging, the polymer demonstrates a drop in permeability, which is typical for ultrapermeable polymers, but with a significant increase in gas selectivities (e.g., O = 1170 Barrer; O/N = 5.4).

摘要

一种新型的固有微孔聚合物（PIM）由二氨基苯并三蝶烯单体通过基于特罗格碱形成的聚合反应制备而成。该聚合物（PIM-BTrip-TB）的比表面积为870 m²/g，在氯仿中具有良好的溶解性，分子量优异，特性粘度高，并能制备出用于气体渗透性测量的坚固薄膜。该聚合物具有高渗透性（例如，H = 9980；O = 3290 Barrer）和适度的选择性（例如，H/N = 11.0；O/N = 3.6），因此其数据位于2008年罗布森H/N、O/N和H/CH气体对的上限之上，以及CO/CH的上限之上。老化后，该聚合物的渗透性下降，这是超渗透聚合物的典型现象，但气体选择性显著增加（例如，O = 1170 Barrer；O/N = 5.4）。