title: Design of superhydrophobic porous coordination polymers through the introduction of external surface corrugation by the use of an aromatic hydrocarbon building unit.
abstract: We demonstrate a new approach to superhydrophobic porous coordination polymers by incorporating an anisotropic crystal morphology featuring a predominant surface that is highly corrugated and terminated by aromatic hydrocarbon moieties. The resulting low-energy surface provides particularly promising hydrophobic properties without the need for postsynthetic modifications or surface processing that would block the porosity of the framework. Consequently, hydrophobic organic molecules and water vapor are able to penetrate the surface and be densely accommodated within the pores, whereas bulk water is repelled as a result of the exterior surface corrugation derived from the aromatic surface groups. This study provides a new strategy for the design and development of superhydrophobic porous materials.
authors: Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501 (Japan); Present address: Chemistry Division, Department of Sciences and Humanities, VFSTR University, Vadlamudi-522 213 (India).
authors: Koya Prabhakara
authors: KP
authors: Rao
authors: Masakazu
authors: M
authors: Higuchi
authors: Kenji
authors: K
authors: Sumida
authors: Shuhei
authors: S
authors: Furukawa
authors: Jingui
authors: J
authors: Duan
authors: Susumu
authors: S
authors: Kitagawa
keywords: contact angles; coordination polymers; materials science; selective sorption; superhydrophobicity