Highly Permeable Benzotriptycene-Based Polymer of Intrinsic Microporosity

被引：161

作者：

Rose, Ian ^{[1
]}

Carta, Mariolino ^{[1
]}

Malpass-Evans, Richard ^{[1
]}

Ferrari, Maria-Chiara ^{[2
]}

Bernardo, Paola ^{[3
]}

Clarizia, Gabriele ^{[3
]}

Jansen, Johannes C. ^{[3
]}

McKeown, Neil B. ^{[1
]}

机构：

[1] Univ Edinburgh, EaStCHEM Sch Chem, Edinburgh EH9 3FJ, Midlothian, Scotland

[2] Univ Edinburgh, Inst Mat & Proc, Sch Engn, Edinburgh EH9 3JL, Midlothian, Scotland

[3] Univ Calabria, ITM CNR, Inst Membrane Technol, I-87036 Arcavacata Di Rende, CS, Italy

来源：

ACS MACRO LETTERS | 2015年 / 4卷 / 09期

关键词：

GAS SEPARATION; POLYIMIDE MEMBRANES; TRIPTYCENE; ENHANCEMENT; PERFORMANCE; PERMEATION;

D O I：

10.1021/acsmacrolett.5b00439

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A novel polymer of intrinsic microporosity (PIM) was prepared from a diaminobenzotriptycene monomer using a polymerization reaction based on Troger's base formation. The polymer (PIM-BTrip-TB) demonstrated an apparent Brunauer, Emmet, and Teller (BET) surface area of 870 m(2) g(-1), 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., PH2 = 9980; PO2 = 3290 Barrer) with moderate selectivity (e.g., PH2/PN2 = 11.0; PO2/PN2 = 3.6) so that its data lie over the 2008 Robeson upper bounds for the H-2/N-2, O-2/N-2, and H-2/CH4 gas pairs and on the upper bound for CO2/CH4. 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., PO2 = 1170 Barrer; PO2/PN2 = 5.4).

引用

页码：912 / 915

页数：4

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