May 17, 2024

[Press Release]Exploration of polymer cononsolvency mechanism through soft X-ray absorption spectroscopy

Release Summary

This study investigates the cononsolvency mechanism of poly(N-isopropylacrylamide) (PNIPAM), which is soluble in pure methanol (MeOH) and water but insoluble in aqueous MeOH solutions. Combining oxygen K-edge X-ray absorption spectroscopy (XAS) with theoretical calculations executed in molecular dynamics (MD) simulations and inner-shell calculations, it was found that hydrophobic interactions between PNIPAM and MeOH clusters play a key role in PNIPAM aggregation and cononsolvency emergence.

For Details (Institute for Molecular Science Press Release)

Information of the paper

  • Authors: Masanari Nagasaka(SOKENDAI), Fumitoshi Kumaki, Yifeng Yao, Jun-ichi Adachi(SOKENDAI) and Kenji Mochizuki
  • Journal Name: Physical Chemistry Chemical Physics
  • Journal Title: "Mechanism of poly(N-isopropylacrylamide) cononsolvency in aqueous methanol solutions explored via oxygen K-edge X-ray absorption spectroscopy
  • DOI: 10.1039/D4CP00676C

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