HIGHLY PERMEABLE DOUBLE-SKINNED FORWARD OSMOSIS MEMBRANE FOR ANTI-FOULING IN THE EMULSIFIED OIL-WATER SEPARATION PROCESS
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United States of America Patent
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Jan 19, 2017
app pub date -
Mar 26, 2015
filing date -
Mar 26, 2014
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Abstract
A double-skinned membrane that includes a polymeric support having a thickness of 20 to 500 nm, a first surface and a second surface opposed to each other; a polymeric thin film layer having a thickness of 1 to 1000 nm and covering the first surface; and a sulfonated pentablock copolymer layer having a thickness of 1 to 1000 nm and covering the second surface. Also disclosed is a method of preparing the above-described double-skinned membrane.
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