%0 Journal Article
%T Unsubstituted <i>¦Â</i>-Alkyl Aspartates as  Highly Biodegradable and Almost  Nontoxic Surfactants
%A Sindija Brica
%A Maris Klavins
%A Andris Zicmanis
%J Green and Sustainable Chemistry
%P 125-135
%@ 2160-696X
%D 2016
%I Scientific Research Publishing
%R 10.4236/gsc.2016.63012
%X Zwitterionic surfactants¡ª<em>¦Â</em>-alkyl aspartates are prepared by the addition reaction of ammonia to alkyl maleates. Factors are discussed that influence the quality and yields of obtained <em>¦Â</em>-alkyl aspartates. Structures of obtained surfactants are confirmed by <sup>1</sup>H NMR and IR spectra. The applicability of these materials is characterized by evaluation of their surface activity, toxicity and biodegradability.
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%K Biodegradability
%K Surface Tension
%K Synthesis
%K Toxicity
%K Zwitterionic Surfactants
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=69638