Get access

Facile Synthesis of Marshmallow-like Macroporous Gels Usable under Harsh Conditions for the Separation of Oil and Water


  • This study was carried out with the NMR spectrometer in the JURC at the Institute for Chemical Research, Kyoto University. Financial support from the Advanced Low Carbon Technology Research and Development Program (ALCA), the Japan Science and Technology Agency (JST), and a Grant-in-Aid for Scientific Research (24550253) from the Japan Society for the Promotion of Science (JSPS) are acknowledged.


original image

Soaking up s'more: Marshmallow-like flexible gels synthesized from organoalkoxysilanes by a facile process show superior oil/water separation properties. The gels are superhydrophobic and can be used to remove organic compounds from water through absorption; they can then be recovered by squeezing them out of the gel, as if it were a sponge. The gel retains flexibility over a wide temperature range, even in liquid nitrogen (see photo).