Processable high internal phase Pickering emulsions using depletion attraction

KyuHan Kim, Subeen Kim, Jiheun Ryu, Jiyoon Jeon, Se Gyu Jang, Hyunjun Kim, Dae-Gab Gweon, Won Bin Im, Yosep Han, Hyunjung Kim and Siyoung Q. Choi ()
Additional contact information
KyuHan Kim: KAIST
Subeen Kim: KAIST
Jiheun Ryu: KAIST
Jiyoon Jeon: KAIST
Se Gyu Jang: Applied Quantum Composites Research Center, Korea Institute of Science Technology (KIST)
Hyunjun Kim: KAIST
Dae-Gab Gweon: KAIST
Won Bin Im: School of Materials Science and Engineering and Optoelectronics Convergence Research Center, Chonnam National University
Yosep Han: Chonbuk National University
Hyunjung Kim: Chonbuk National University
Siyoung Q. Choi: KAIST

Nature Communications, 2017, vol. 8, issue 1, 1-8

Abstract: Abstract High internal phase emulsions have been widely used as templates for various porous materials, but special strategies are required to form, in particular, particle-covered ones that have been more difficult to obtain. Here, we report a versatile strategy to produce a stable high internal phase Pickering emulsion by exploiting a depletion interaction between an emulsion droplet and a particle using water-soluble polymers as a depletant. This attractive interaction facilitating the adsorption of particles onto the droplet interface and simultaneously suppressing desorption once adsorbed. This technique can be universally applied to nearly any kind of particle to stabilize an interface with the help of various non- or weakly adsorbing polymers as a depletant, which can be solidified to provide porous materials for many applications.

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms14305

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DOI: 10.1038/ncomms14305

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