講演・口頭発表等

2017年10月4日

Flash-freezing Nanocrystallization as a Fabrication Method of Mesoporous Polymers

NIMS WEEK 2017
  • SAMITSU, Sadaki

記述言語
英語
会議種別

Here we report new type of phase separation in a polymer solution: nanocrystallization phase separation. We found that flash freezing of a high-concentration polymer solution results in the uniform bicontinuous microstructure of solvent nanocrystals and nanofibrous polymer networks. Since the solvent nanocrystals act as a uniform template of nanopores, solvent extraction by an excess poor solvent successfully gave mesoporous polymers with large specific surface areas as well as sharp pore size distributions in 5 to 20 nanometer size.