TY - JOUR
T1 - Gas separation and water desalination performance of defect-free interfacially polymerized para-linked polyamide thin-film composite membranes
AU - Ali, Zain
AU - Wang, Yingge
AU - Ogieglo, Wojciech
AU - Pacheco Oreamuno, Federico
AU - Vovusha, Hakkim
AU - Han, Yu
AU - Pinnau, Ingo
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): BAS/1/1323-01-01
Acknowledgements: The research reported in this publication was supported by funding (BAS/1/1323-01-01) from King Abdullah University of Science and Technology (KAUST).
PY - 2020/8/10
Y1 - 2020/8/10
N2 - Introduction of interfacially polymerized (IP) polyamide thin-film composite (TFC) membranes in the 1980s revolutionized the reverse osmosis desalination industry. However, IP-derived TFCs have not achieved industrial success for gas separation applications due to the presence of membrane defects in their dry state. In this work, we report defect-free crosslinked polyamide thin-film composite membranes prepared from para-substituted aromatic and cycloaliphatic diamines, p-phenylenediamine (PPD) and piperazine (PIP), reacted with trimesoyl chloride (TMC). The key parameters in our modified IP process to mitigate defects are long reaction time (∼5 min) and high organic solution temperature (100 °C). The gas separation and desalination properties of the para-linked polyamide membranes were compared to previously reported polyamide TFCs made from meta-phenylenediamine (MPD) and TMC. The gas- and water permeances of the TFCs increased in the order: MPD-TMC
AB - Introduction of interfacially polymerized (IP) polyamide thin-film composite (TFC) membranes in the 1980s revolutionized the reverse osmosis desalination industry. However, IP-derived TFCs have not achieved industrial success for gas separation applications due to the presence of membrane defects in their dry state. In this work, we report defect-free crosslinked polyamide thin-film composite membranes prepared from para-substituted aromatic and cycloaliphatic diamines, p-phenylenediamine (PPD) and piperazine (PIP), reacted with trimesoyl chloride (TMC). The key parameters in our modified IP process to mitigate defects are long reaction time (∼5 min) and high organic solution temperature (100 °C). The gas separation and desalination properties of the para-linked polyamide membranes were compared to previously reported polyamide TFCs made from meta-phenylenediamine (MPD) and TMC. The gas- and water permeances of the TFCs increased in the order: MPD-TMC
UR - http://hdl.handle.net/10754/664581
UR - https://linkinghub.elsevier.com/retrieve/pii/S0376738820311492
U2 - 10.1016/j.memsci.2020.118572
DO - 10.1016/j.memsci.2020.118572
M3 - Article
SN - 0376-7388
SP - 118572
JO - Journal of Membrane Science
JF - Journal of Membrane Science
ER -