| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Synthesis, Characterization, Modeling and Applications of Functional Porous Materials
|
| Presentation Title |
Layer-by-layer Assembled Polymer/MOF Membrane for H2/CO2 Separation |
| Author(s) |
Fangming Xiang, David Hopkinson |
| On-Site Speaker (Planned) |
Fangming Xiang |
| Abstract Scope |
Numerous investigators have produced polymer composites containing metal-organic framework (MOF) filler particles in attempts to combine the processability of polymers and the gas selectivity of MOF particles. However, filler particle aggregation and weak filler-matrix interaction have sometimes led to poor gas separation performance. In this study, we combined polyvinylpyrrolidone modified UiO-66-PA particles (PVP + MOF) with poly(acrylic acid) (PAA) through H-bonding assisted layer-by-layer assembly. The resultant PAA/(PVP + MOF) bilayers feature individually dispersed fillers and strong filler-matrix interaction. Of note, this filler-matrix interaction is stronger than the internal strength of fillers, which is a phenomenon previously not seen in polymer/MOF composites. This polymer/MOF membrane is more selective (H2/CO2 = 20.3) than its neat polymer counterpart (H2/CO2 = 12.5) as well as several pure-MOF membranes that were reported previously (H2/CO2 < 10). |