Engineering Polymers of Intrinsic Microporosity for CO2/CH4 Separations
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Amezcua, Fidel
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Abstract
The conventional approach to designing and synthesizing polymeric materials for industrial applications has traditionally relied on experimentalist judgment of material structures and properties. After material selection, the synthesis of the polymer and subsequent performance testing involves extensive laboratory efforts, often yielding less than-optimal results.
This study focuses on the innovative design of polymeric materials for membrane-based gas separations. To streamline the material discovery process and guide synthetic procedures, we employ the online informatics platform Polymer Genome. This platform is utilized to predict the pure gas separation performance of novel polymers of intrinsic microporosity (PIMs) for CO2, N2, and CH4. In addition, we present the synthesis of a novel bio-derived ladder polymer inspired by PIMs, using ellagic acid as a biomolecule feedstock. Our findings indicate that while Polymer Genome predictions are not perfectly accurate, they offer sufficient reliability. Furthermore, we investigate the CO2/CH4 pressure-dependent permeabilities and solubility uptakes for the materials of interest. Finally, we employ the dual-mode sorption model, extending our study to CO2 and CH4 diffusivity at varying pressures.
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2023-12-14
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