Abstract
New betaine types of amphoteric surfactants each bearing a 1, 3-dioxolane ring were prepared by reaction of epibromohydrin and ethyl levulinate in the presence of BF3·Et2O, followed by treating the products thus obtained with N, N-dimethyl (long-chain alkyl) amines and then neutralization. Surface-active properties in neutral aqueous solution, decomposition profiles under acidic conditions and properties of the aqueous solutions following decomposition were clarified.
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