Loading…
Can Self-Assembly Address the Permeability/Selectivity Trade-Offs in Polymer Membranes?
In 1999, Freeman published a visionary article that proposed a molecular basis for the trade-off between permeability and selectivity for polymeric gas separation membranes, which is often codified as an “upper bound”. This work has had major impacts in the gas separation membrane community and is p...
Saved in:
Published in: | Macromolecules 2020-07, Vol.53 (14), p.5649-5654 |
---|---|
Main Authors: | , , , |
Format: | Article |
Language: | English |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | In 1999, Freeman published a visionary article that proposed a molecular basis for the trade-off between permeability and selectivity for polymeric gas separation membranes, which is often codified as an “upper bound”. This work has had major impacts in the gas separation membrane community and is paralleled by developments in the water purification membrane literature. A common theme between both communities is optimizing free volume or pore size distributions in polymer membranes to maximize separation performance. In guiding future development in the field, we identify the need to develop isoporous ultrafiltration membranes and highlight the potential for block copolymer self-assembly to achieve direct access to “structure by design” without requiring complex optimization of phase inversion processes. |
---|---|
ISSN: | 0024-9297 1520-5835 |
DOI: | 10.1021/acs.macromol.0c01111 |