An investigation of chitosan and sodium dodecyl sulfate interactions in acetic media
Polymer/surfactant association is a cooperative phenomenon where surfactant binds to the polymer in the form of aggregates, usually through electrostatic or hydrophobic forces. As already known, polyelectrolytes may interact with oppositely charged surfactants through electrostatic attracti...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Serbian Chemical Society
2016-01-01
|
| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2016/0352-51391600024P.pdf |
| Summary: | Polymer/surfactant association is a cooperative phenomenon where surfactant
binds to the polymer in the form of aggregates, usually through electrostatic
or hydrophobic forces. As already known, polyelectrolytes may interact with
oppositely charged surfactants through electrostatic attraction that results
in polymer/surfactant complex formation. This behavior could be desirable in
wide range of application of polymer/surfactant mixtures, such as improving
colloid stability, gelling, emulsification and microencapsulation. In the
present study surface tension, turbidity, viscosity and electrophoretic
mobility measurements were used to investigate interactions of cationic
polyelectrolyte chitosan (Ch) and oppositely charged anionic surfactant,
sodium dodecyl sulfate (SDS), in buffered water. Obtained results show the
presence of interactions that lead to Ch/SDS complexes formation at all
investigated pH and for all investigated polymer concentrations. Mechanisms
of interaction, as well as characteristics of formed Ch/SDS complexes, are
highly dependent on their mass ratio in the mixtures, while pH has no
significant influence. [Projekat Ministarstva nauke Republike Srbije, br.
II46010] |
|---|---|
| ISSN: | 0352-5139 1820-7421 |