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PreprintCC BYChemRxiv

Polyamide Reverse Osmosis Membranes Are Less Crosslinked Than Previously Thought

  • Subhamoy Mahajan1,2
  • Ying Li1,2
  1. 1Department of Mechanical Engineering
  2. 2University of Wisconsin-Madison
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Abstract

Polyamide membranes are central to industrial separations, including desalination and water treatment. They are typically described as comprising crosslinked and linear units. Molecular dynamics simulations and topological analysis find branched units to be similar to or more prevalent than crosslinked units, and ignoring them can mischaracterize polyamide membranes. 2 Crosslinked polyamide membranes are widely used as selective layers in thin film composites (TFC) for reverse osmosis, forward osmosis, and nanofiltration.1 The most common desalination membranes are formed by reacting m-phenylenediamine (MPD) with trimesoyl chloride (TMC);

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Cite

BibTeXRIS
BibTeX
@misc{mahajan2026polyamide,
  title = {{Polyamide Reverse Osmosis Membranes Are Less Crosslinked Than Previously Thought}},
  author = {Subhamoy Mahajan and Ying Li},
  howpublished = {ChemRxiv},
  year = {2026},
  month = oct,
  doi = {10.26434/chemrxiv.15010833/v1},
  url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010833/v1},
  note = {CC BY},
}
RIS
TY  - UNPB
TI  - Polyamide Reverse Osmosis Membranes Are Less Crosslinked Than Previously Thought
AU  - Subhamoy Mahajan
AU  - Ying Li
PY  - 2026
DA  - 2026/10/22
PB  - ChemRxiv
DO  - 10.26434/chemrxiv.15010833/v1
UR  - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010833/v1
AB  - Polyamide membranes are central to industrial separations, including desalination and water treatment. They are typically described as comprising crosslinked and linear units. Molecular dynamics simulations and topological analysis find branched units to be similar to or more prevalent than crosslinked units, and ignoring them can mischaracterize polyamide membranes. 2 Crosslinked polyamide membranes are widely used as selective layers in thin film composites (TFC) for reverse osmosis, forward osmosis, and nanofiltration.1 The most common desalination membranes are formed by reacting m-phenylenediamine (MPD) with trimesoyl chloride (TMC);
ER  -