Flash freezing route to mesoporous polymer nanofibre networks

Sadaki Samitsu (), Rui Zhang, Xinsheng Peng, Mohan Raj Krishnan, Yoshihisa Fujii and Izumi Ichinose ()
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Sadaki Samitsu: Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki
Rui Zhang: Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki
Xinsheng Peng: Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki
Mohan Raj Krishnan: Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki
Yoshihisa Fujii: Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki
Izumi Ichinose: Polymer Materials Unit, National Institute for Materials Science (NIMS), 1-1 Namiki

Nature Communications, 2013, vol. 4, issue 1, 1-7

Abstract: Abstract There are increasing requirements worldwide for advanced separation materials with applications in environmental protection processes. Various mesoporous polymeric materials have been developed and they are considered as potential candidates. It is still challenging, however, to develop economically viable and durable separation materials from low-cost, mass-produced materials. Here we report the fabrication of a nanofibrous network structure from common polymers, based on a microphase separation technique from frozen polymer solutions. The resulting polymer nanofibre networks exhibit large free surface areas, exceeding 300 m2 g−1, as well as small pore radii as low as 1.9 nm. These mesoporous polymer materials are able to rapidly adsorb and desorb a large amount of carbon dioxide and are also capable of condensing organic vapours. Furthermore, the nanofibres made of engineering plastics with high glass transition temperatures over 200 °C exhibit surprisingly high, temperature-dependent adsorption of organic solvents from aqueous solution.

Date: 2013
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DOI: 10.1038/ncomms3653

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