• HUAJING GAO

      Articles written in Bulletin of Materials Science

    • Properties of ionic liquid cross-linked hydrogels and their application of derusting

      JIAN SUN JIYANG WANG HONG WANG DAILIN LI HUAJING GAO ZHAOHUI JIN

      More Details Abstract Fulltext PDF

      Dimethylaminoethyl methacrylate maleate (DMAEMA–MA) polymerizable ionic liquid was synthesized from 2-(dimethylamino)ethyl methacrylate and maleic acid and characterized by ${}1$HNMR and FTIR. IC-P hydrogel was prepared by hydrothermal synthesis method using 2-acrylamide-2-methylpropane sulphonic acid and acrylamide as monomers, DMAEMA–MA as crosslinker and potassium peroxodisulphate as initiator. BIS-P hydrogel was prepared by using $N$,$N$'-methylene bisacrylamide (BIS) as non-ionic crosslinker, and the performances of BIS-P and IC-P hydrogels were compared. The results showed that IC-P hydrogel had a pore structure similar to BIS-P. When the dosage of DMAEMA–MA was 1.6% (based on the total mass of monomers), the swelling rate of the prepared IC$_{1.6}$ hydrogel in water can reach 235.97%, the conductivity was 58.8 ${\mu}$S cm$^{-1}$, and the derusting effect of Q235 low carbon steel with rust grade C could reach grade A. Moreover, DMAEMA–MA could improve the thermal stability of IC-P hydrogel.

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