Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
612596 | Journal of Colloid and Interface Science | 2006 | 9 Pages |
The complex dynamic surface elasticity of the solutions of copolymer of sodium 2-acrylamido-2-methyl-1-propansulfonate with N-isopropylacrylamide and dodecyltrimethylammonium bromide was measured as a function of the surfactant concentration and the surface age by the oscillating bubble and drop methods. The kinetic dependencies of the surface elasticity proved to be non-monotonic at low concentrations and the main features of the surface viscoelasticity differed from the results for other polyelectrolyte/surfactant solutions films studied so far. The observed peculiarities were connected with the properties of the copolymer chain.
Graphical abstractThe complex dynamic surface elasticity of the solutions of copolymer of AMPS-NIPAM and DTAB was measured as a function of the surfactant concentration and the surface age by the oscillating bubble and drop methods. The kinetic dependencies of the surface elasticity proved to be non-monotonic at low concentrations and the main features of the surface viscoelasticity differed from the results for other polyelectrolyte/surfactant solutions layer studied so far. The observed peculiarities were connected with the properties of the copolymer chain.Figure optionsDownload full-size imageDownload as PowerPoint slide