Abstract
Four anionic maleic monoester carboxylate polymeric surfactants were synthesized by the reaction of maleic anhydride with linear alcohols of different chain length in the ratio of 1:1.1 under 80 °C. Then the intermediate products were neutralized by sodium hydroxide at 60 °C to produce the final monomers. The structures of products were confirmed by FTIR. The surface tension was measured at 45 °C and the thermodynamic parameters were calculated. The results show that the polymeric surfactants possess low critical micelle concentration (CMC), high adsorption affinities and good surface and interfacial activity.
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