公开(公告)号：US20220331749A1

公开(公告)日：2022-10-20

申请号：US17722825

申请日：2022-04-18

Applicant: University of Kansas

Inventor： Gibum Kwon ,  Bishwash Shrestha ,  Mohammadamin Ezazi

IPC: B01D71/40 ,  C10G25/00 ,  H01M8/0221

Abstract: A method of separating a mixture of fluids may comprise contacting an absorbent material with a mixture of fluids comprising a first fluid and a second fluid having different polarities, wherein the absorbent material selectively absorbs the first fluid to provide a permeate comprising the first fluid and a retentate comprising the second fluid. The absorbent material comprises a zwitterionic polymer, the zwitterionic polymer being a polymerization product of reactants comprising a zwitterionic monomer and a (meth)acrylate crosslinker. The zwitterionic monomer is selected from the group consisting of: a zwitterionic monomer of Formula I, R—(CH2)m—NR′2+—(CH2)n-A−, wherein R is selected from a carboxyamide, a (meth)acrylate, and an alkyl; m is an integer of from 0 to 5; each R′ is independently selected from hydrogen and an alkyl; n is an integer of from 1 to 5; and A− is SO3− or CO2−; a zwitterionic monomer of Formula II, R—(CH2)m-A−-(CH2)n—NR′3+, wherein R is an (meth)acrylate; m is an integer of from 1 to 5; A is PO4−; n is an integer of from 1 to 5; and each R′ is independently selected from hydrogen and an alkyl; carboxybetaine diacrylamide; (3-methacryloylamino-propyl)-(2-carboxy-ethyl)-dimethylammonium; 3-[Dimethyl-(2-hydroxyethyl)ammonio]-1-propanesulfonate; 1-methylpyridinium 3-sulfonate; and combinations thereof.