4 years ago

Mesoporous water adsorbent material from poly high internal phase emulsion for agriculture application

Mesoporous water adsorbent material from poly high internal phase emulsion for agriculture application
Manit Nithitanakul, Supakorn Chindacharin, Jitima Preechawong, Pornsri Sapsrithong
Mesoporous water adsorbent materials were prepared by high internal phase emulsion (HIPE) technique: a technique which used aqueous phase (water phase) as a temporary template (in the form of droplets) and oil phase (polymer phase) as a continuous structure. This research describes the preparation of porous poly[S/ethylene glycol dimethylacrylate (EGDMA)]HIPE from styrene crosslinked with EGDMA. Effects of chemical composition on the pores of the mesoporous adsorbents were investigated. The EGDMA concentration was varied between 0 and 40% of oil phase by total volume to give polyHIPE with various amounts of hydroxyl groups. Effects of oil: aqueous phase ratio on mesoporous adsorbent polyHIPEs resulted in interconnected pores in their morphology. The EGDMA concentration also affected the obtained polyHIPE morphology. The water adsorption of poly(S/EGDMA)HIPE gave high water adsorption, up to 350% of dry weight. The obtained polyHIPE with large average pore size were also found to give high water adsorption capacity. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45509.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/app.45509

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