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<p>Three types of polyketones with different numbers of 3,5-(C<sub>4</sub>F<sub>9</sub>)<sub>2</sub>C<sub>6</sub>H<sub>3</sub> groups at both ends were successfully synthesized. The resulting polyketones are soluble in typical organic solvents such as THF, CHCl<sub>3</sub>, and NMP. These materials exhibit good thermal stability above 519 °C (<i>T</i><sub>d10</sub>) and high glass transition temperatures (<i>T</i><sub>g</sub>) above 221 °C. Furthermore, these polyketones have excellent water/oil repellency. Notably, the polyketone with ten C<sub>4</sub>F<sub>9</sub> groups at each polymer end has a lower surface tension than PTFE (Polytetrafluoroethylene). XPS (X-ray Photoelectron Spectroscopy) measurements revealed that the increase in the water/oil repellency of the polyketones was due to the localization of terminal C<sub>4</sub>F<sub>9</sub> groups on the film surface.</p>

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Development of water/oil repellent and heat-resistant aromatic poly(ether ketone)s bearing 3,5-(C4F9)2C6H3 groups at both ends

  • 期刊论文

  • 发表日期：

    2025年3月28日

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  • Haruki Konta,
  • Katsuya Maeyama

摘要

Three types of polyketones with different numbers of 3,5-(C4F9)2C6H3 groups at both ends were successfully synthesized. The resulting polyketones are soluble in typical organic solvents such as THF, CHCl3, and NMP. These materials exhibit good thermal stability above 519 °C (Td10) and high glass transition temperatures (Tg) above 221 °C. Furthermore, these polyketones have excellent water/oil repellency. Notably, the polyketone with ten C4F9 groups at each polymer end has a lower surface tension than PTFE (Polytetrafluoroethylene). XPS (X-ray Photoelectron Spectroscopy) measurements revealed that the increase in the water/oil repellency of the polyketones was due to the localization of terminal C4F9 groups on the film surface.