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Zwitterionic surfactants—β-alkyl aspartates are prepared by the addition reaction of ammonia to alkyl maleates. Factors are discussed that influence the quality and yields of obtained β-alkyl aspartates. Structures of obtained surfactants are confirmed by 1H NMR and IR spectra. The applicability of these materials is characterized by evaluation of their surface activity, toxicity and biodegradability.

Unsubstituted &lt;i&gt;β&lt;/i&gt;-Alkyl Aspartates as Highly Biodegradable and Almost Nontoxic Surfactants

Unsubstituted <i>β</i>-Alkyl Aspartates as Highly Biodegradable and Almost Nontoxic Surfactants