The surface properties of water soluble copolymers vinyl ethers of monoethanolamine and ethylene glycol with sodium 2-acrylamido-2-methyl-propanesulfonate were investigated by studying adsorption at the aqueous solution-air interface. It is found that copolymers have considerably higher surface activity in comparison with poly-sodium 2-acrylamido-2-methyl-propanesulfonate.
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