Design and interfacial assembly of a new series of gemini amphiphiles with hydrophilic poly (ethyleneamine) spacers

Article Abstract:

A novel range of gemini amphiphiles comprising of two Schiff base moieties connected by the poly (ethyleneamine) with various lengths is described and their interfacial assemblies are analyzed. A strong correlation with tetrakis (4-sulfonatonphenyl) porphine (TPPS) and gemini amphiphile is observed in the subphase and complicated monolayers and the complex films have demonstrated supramolecular chirality resulting from the helical stacking of the TPPS in the films.

Plastics Material and Resin Manufacturing, Plastics materials and resins, Polyethylene, X-rays, X-ray diffraction, Spectra, Thin films, Multilayered, Multilayered thin films, Properties, Structure, Circular dichroism

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Supramolecualr assemblies and molecular recognition of amphiphilic Schiff bases with Barbituric acid in organized molecular films

Article Abstract:

A bolaform Schiff base is synthesized and its interfacial hydrogen bond formation to molecular recognition with barbituric acid is investigated in comparison with that of a single chain Schiff base, 2-hydroxybenzaldehyde-octadecylamine (HBOA). HBOA forms a monolayer at the air/water interface and the bolaform Schiff base formed a multilayer film with ordered layer structure on water surface.

China, Water chemistry

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Regulation of aggregation and morphology of cyanine dyes on monolayers via gemini amphiphiles

Article Abstract:

The result from investigation of the regulation on the aggregation and morphology of two cyanine dyes, by using a series of gemini amphiphiles revealed both the dyes ability to be adsorbed onto monolayers of the gemini amphiphiles through the electrostatic and [pi]-[pi] interaction and stacked into H- or J-aggregate.

Cyclic crudes and intermediates, Synthetic Organic Dye and Pigment Manufacturing, Organic Colorants, Organic Dyes & Pigments, Organic Dyes, Electrostatic interactions

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