4.8 Article

A Robust Polyionized Hydrogel with an Unprecedented Underwater Anti-Crude-Oil-Adhesion Property

Journal

ADVANCED MATERIALS
Volume 28, Issue 26, Pages 5307-+

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201600417

Keywords

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Funding

  1. National Natural Science Foundation of China [21433012, 21273270]
  2. National Basic Research Program of China [2013CB933000]
  3. Key Development Project of Chinese Academy of Sciences [KJZD-EW-M01-3]
  4. Natural Science Foundation of Jiangsu Province [BK20130007]

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A polyionized hydrogel polymer (sodium polyacrylate-grafted poly(vinylidene fluoride) (PAAS-g-PVDF)) is fabricated via an alkaline-induced phase-inversion process. PAAS-g-PVDF coatings exhibit unprecedented anti-adhesion and self-cleaning properties to crude oils under an aqueous environment. A PAAS-g-PVDF-coated copper mesh can effectively separate a crude oil/water mixture with extremely high flux and high oil rejection driven by gravity, and is oil-fouling-free for long-term use.

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