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Continuous preparation of polyHIPE monoliths from ionomer-stabilized high internal phase emulsions (HIPEs) for efficient recovery of spilled oils

Zhang, Tao and Guo, Qipeng 2017, Continuous preparation of polyHIPE monoliths from ionomer-stabilized high internal phase emulsions (HIPEs) for efficient recovery of spilled oils, Chemical engineering journal, vol. 307, pp. 812-819, doi: 10.1016/j.cej.2016.09.024.

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Title Continuous preparation of polyHIPE monoliths from ionomer-stabilized high internal phase emulsions (HIPEs) for efficient recovery of spilled oils
Author(s) Zhang, Tao
Guo, Qipeng
Journal name Chemical engineering journal
Volume number 307
Start page 812
End page 819
Total pages 8
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2017-01-01
ISSN 1385-8947
Keyword(s) PolyHIPEs
Ionomer
Sulfonated polystyrene
Waste polystyrene
Oil spill recovery
Summary We present a facile and continuous approach to prepare polyHIPE monoliths for efficient reclamation of spilled oils. The polyHIPE monoliths were produced from a light induced polymerization of an ionomer, namely sulfonated polystyrene stabilized high internal phase emulsions (SPS-HIPEs). The SPS-HIPEs consisted of seawater as the dispersed aqueous phase and inexpensive monomers such as butyl acrylate and tetraethyl orthosilicate (TEOS) as the continuous phase. Sulfonated polystyrene was from used foams, realizing a sustainable transformation of waste polystyrene. PolyHIPE monoliths from SPS-HIPEs (SPS-polyHIPEs) reached a high gel fraction of 93% with exposure to UV light for only 5 min, providing a possibility to produce them continuously. SPS-polyHIPEs are much greener in comparison to those from surfactant- or particles-stabilized HIPEs, and no purification is required prior to use. SPS-polyHIPE monoliths exhibit interconnected macro-porous structures, and the sizes of pores as well as pore throats can be controlled simply by the volume fraction of the dispersed phase. These monoliths are hydrophobic with a water contact angle over 140°. Excellent performances have been verified for oil spill reclamation, including high absorption capacity to a series of organic solvents or oils, high absorption rate of reaching saturated absorption in 3–5 min, a high recovery rate over 85% and a high reusability over 20 times. A continuous process has been illustrated using SPS-polyHIPEs as absorbents for oil spill recovery.
Language eng
DOI 10.1016/j.cej.2016.09.024
Field of Research 099999 Engineering not elsewhere classified
0904 Chemical Engineering
Socio Economic Objective 0 Not Applicable
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2016, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30087002

Document type: Journal Article
Collection: Institute for Frontier Materials
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