Abstract
In a reaction of bis(2-hydroxyethyl)disulphide with methyl- or ethyloxirane (proylene or α-butylene oxide) carried out in the presence of ternary amine as catalyst, hydrophobic oligomers were obtained. By reacting them with oxirane (ethylene oxide), surface active block copolymers were obtained. The all-block copolymers were characterized and their efficiency of adsorption as well as foaming and wetting properties were measured
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