New Materials for Gas Separation Applications: Mixed Matrix Membranes Made from Linear Polyimides and Porous Polymer Networks Having Lactam Groups Article Swipe

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Carla Aguilar‐Lugo , Fabián Suárez‐García , A. Hernández , Jesús A. Miguel , Ángel E. Lozano , José G. de la Campa , Cristina Álvarez ·

YOU? · · 2019 · Open Access · · DOI: https://doi.org/10.1021/acs.iecr.9b01402

A set of mixed matrix membranes (MMMs) has been prepared by incorporating a triptycene-isatin porous polymer network (PPN) to three aromatic polyimides (one commercial, Matrimid, and two synthesized by us: 6FDA-6FpDA and 6FDA-TMPD) covering a wide range of performances for gas separation. The triptycene-isatin PPN is a highly microporous network having a high CO uptake and high chemical and thermal stability. The good compatibility between the components (PPN content of 15 and 30% w/w) was supported by the increase in the glass transition temperature of MMMs relative to the pure polyimide membranes. The addition of the PPN particles improved the permeability of all the gases tested, by increasing diffusivity and, in some cases, gas solubility. The improvements were particularly noticeable in Matrimid-based MMMs, where gas permeability increased by 700%, whereas CO/N and CO/CH ideal selectivities decreased by a mere 4% and 12%, respectively.

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Triptycene Gas separation Membrane Polyimide Microporous material Polymer Barrer Chemical engineering Solubility Thermal stability Permeation Porosity Thermal diffusivity Polymer chemistry Materials science Permeability (electromagnetism) Synthetic membrane Glass transition Porous medium Chemistry Organic chemistry Thermodynamics Layer (electronics) Physics Engineering Biochemistry

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Type: article
Language: en
Landing Page: https://doi.org/10.1021/acs.iecr.9b01402
OA Status: gold
Cited By: 29
References: 43
Related Works: 10
OpenAlex ID: https://openalex.org/W2944302491

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DOI: https://doi.org/10.1021/acs.iecr.9b01402

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Title: New Materials for Gas Separation Applications: Mixed Matrix Membranes Made from Linear Polyimides and Porous Polymer Networks Having Lactam Groups

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Language: en

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Publication year: 2019

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Publication date: 2019-05-09

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Authors: Carla Aguilar‐Lugo, Fabián Suárez‐García, A. Hernández, Jesús A. Miguel, Ángel E. Lozano, José G. de la Campa, Cristina Álvarez

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Landing page: https://doi.org/10.1021/acs.iecr.9b01402

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Concepts: Triptycene, Gas separation, Membrane, Polyimide, Microporous material, Polymer, Barrer, Chemical engineering, Solubility, Thermal stability, Permeation, Porosity, Thermal diffusivity, Polymer chemistry, Materials science, Permeability (electromagnetism), Synthetic membrane, Glass transition, Porous medium, Chemistry, Organic chemistry, Thermodynamics, Layer (electronics), Physics, Engineering, Biochemistry

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Cited by: 29

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