The effect on Solution Properties of Replacing a Hydrogen Atom with a Methyl Group in a Surfactant
Journal article, 2015
Two surfactants, namely, dodecanoylglycinate and dodecanoylsarcosinate, differing only in a methyl group vs. a hydrogen atom on the amide nitrogen, have been studied with respect to solution behavior and adsorption at the air-water, oil-water and calcium carbonate-water interfaces. It was found that the ability of the glycinate surfactant of forming intermolecular hydrogen bonds via the amide group leads to tighter molecular packing, which greatly influenced the behavior at interfaces. Based on this molecular observation, potential applications were considered and emulsification, foaming and wetting tests were carried out. It could be concluded from this work that a minor change in the structure of a surfactant molecule can be very significant for technological systems and processes.
Wetting
Foam
Emulsion
Dodecanoylglycinate
Dodecanoylsarcosinate
Author
Nirav Raykundaliya
Dharmsinh Desai University
Romain Bordes
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
SuMo Biomaterials
Krister Holmberg
Chalmers, Chemistry and Chemical Engineering, Applied Chemistry
Jun Wu
Columbia University in the City of New York
Ponisseril Somasundaran
Columbia University in the City of New York
Dinesh O Shah
Dharmsinh Desai University
University of Florida
Tenside, Surfactants, Detergents
0932-3414 (ISSN)
Vol. 52 5 369-374Subject Categories (SSIF 2011)
Chemical Engineering
Other Chemical Engineering
Other Chemistry Topics
Chemical Sciences
Areas of Advance
Materials Science
DOI
10.3139/113.110387