Effect of the exchange of substituent position in an amide amphiphile on the monolayer characteristics

Article Abstract:

The effect of a very small change in the chemical structure of an acid amide amphiphile on the characteristic features of the Langmuir monolayers, which is not based on chirality, is investigated. The synthesis of amphiphiles N-tridecyl-beta-hydroxypropionic acid amide (THPA) and N-(beta-hydroxyethyl)tridecanoic acid amide (HETA) has allowed the comparison of the monolayer characteristics of two very similar amphiphiles, the chemical structure of which is only changed by exchanging the position of the two substituents at the acid amide group.

X-rays, X-ray diffraction, Amides, Structure, Chemical properties

---

Chiral discrimination effects in Langmuir monolayers: Monolayers of palmitoyl aspartic acid, N-stearoyl serine methyl ester, and N-tetradecyl-gamma,delta-dihydroxypentanoic acid amide

Article Abstract:

The chiral discrimination energies in domains composed of chiral amphiphilic monolayers are theoretically studied. However, systematic coarse-graining of model systems shows that the consistent use of a set of parameters can correctly predict the chiral preference. The model calculation suggests that, with a gradual loss of chirality of the model molecule, the chiral interaction is diminished.

All Other Basic Organic Chemical Manufacturing, Industrial organic chemicals, not elsewhere classified, Methyl Ether, Monomolecular films, Aspartate, Properties

---

Role of electrostatic interactions for the domain shapes of Langmuir monolayers of monoglycerol amphiphiles

Article Abstract:

The role of electrostatic interaction in the domain morphology of amide, ether, ester, and amine monoglycerol monolayers with systematic variation in the molecular structure of the headgroup region is investigated. The results suggest that the characteristic feature of the condensed monolayer phase is very different for these monoglycerols.

Electric properties, Molecular structure

Similar abstracts:

• Abstracts: The effect of halogen substitution in self-assembled monolayers of 4-mercaptobiphenyls on noble metal substrates
• Abstracts: Effect of hydrophobic chain length of amphiphilic silicone oil (copolymer) on the nonionic surfactant layer curvature
• Abstracts: Effects of bridge ions, DNA species, and developing temperature on flat-lying DNA monolayers. Electrochemical investigations of M-DNA self-assembled monolayers on gold electrodes
• Abstracts: Effects of charge density and counterions on the assembly of polyelectrolyte multilayers. Effects of film thickness on the validity of the Sauerbrey equation for hydrated polyelectrolyte films
• Abstracts: Effect of the hydrophilicity of aromatic counterions on the structure of ionic micelles. Chain-length anomaly in the two-dimensional ordering of the cationic surfactants CnTAB at the graphite/water interface, revealed by advanced calorimetric methods

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.