Determination of the hydrogenation state of benzene by the thermally induced phase separation of Poly(ethersulfone)

Taehyoung Kim, Jinhee Lee, Byungyong Lee, Jeyoung Park, Sua Song, Byung Kwon Kim, Sang Youl Kim

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The thermally induced phase separation behavior of poly(ethersulfone) (PES) in organic solvents is applied in sensing the hydrogenation state of benzene. A non-solvent of PES, benzene and its reduction products lower the clouding point temperature (Tcp) of a polymer solution. The Tcp decreases as the number of π electrons decreases, and a linear correlation between the temperature and concentration is obtained. In addition, the Tcp of the mixed system can be predicted according to the proportion of components, and the calculated results are found to be in good agreement with the experimental results.

Original languageEnglish
Article number124105
StatePublished - 16 Sep 2021

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government ( NRF-2021R1A4A1052070 , NRF-2021R1A2C4002069 ) and the Technology Innovation Program ( 20004948 , Development of Optical Isotropic Film with High Temperature Durability over 150 °C and High Transmittance (>90%) and 20007228 , High Transparent and Heat resistant Fluorine Polyimide Technology for OLED Substrate) funded by the Ministry of Trade, Industry & Energy (MOTIE) , Korea.

Publisher Copyright:
© 2021 Elsevier Ltd


  • Benzene reduction
  • Chain-growth condensation polymerization
  • Chemical sensor
  • Poly(ether sulfone)
  • Thermo-responsive polymer


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