| Title: |
ON THE SYNTHESIS, SURFACE ACTIVITY AND SUPRAMOLECULAR STRUCTURES OF PSEUDO DOUBLE-CHAINED L-Asp BASED AMPHIPHILES. |
| Authors: |
Anchev, Borislav; Grozev, Nikolay A.; Mircheva, Kristina M.; Tsekova, Daniela S. |
| Source: |
Journal of Chemical Technology & Metallurgy; 2020, Vol. 55 Issue 1, p11-22, 12p |
| Subject Terms: |
BREWSTER'S angle; SCANNING electron microscopy; AMPHIPHILES; COMPLEX compounds; MONOMOLECULAR films |
| Abstract: |
Eight new final compounds derivatives of L-Asp are synthesized. They contain L-Asp linked by an amide bond both to n-hexyl chain on its C-side and an acyl chain linked to the N-side. Four different acylic residues are condensed to the N side. The newly synthesized compounds belong to two series of structures, as four of them contain L-Asp-b-benzyl ester, while the other four - a typical L-Asp-b-carboxylic group. The structures of the surfactants are categorized as pseudo-double alkyl chained amphiphiles, because one of the tails has a constant length of only six carbon atoms. Some of the newly synthesized surfactants are studied as monolayers on the air/water interface. The properties of the rest of them are determined by tensiometric and conductometric methods. Nano- and micro- sized supramolecular complexes of the compounds studied are observed in monolayers using Brewster Angle Microscopy (BAM) and Scanning Electron Microscopy (SEM) for samples after solvent evaporation. [ABSTRACT FROM AUTHOR] |
| : |
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| Database: |
Complementary Index |