nological processes; however, in general, it depends on the An experimental investigation of the influence of the hydrophilic amount of surfactant adsorbed and on the conformation of chain length of four nonionic surfactants, having the same hythe surfactant at the surface (1, 2). Therefore, as a first step drophobic part, on their adsorption onto latexes is described. Two in the study of the colloid stability of surfactant-polystyrene polystyrene latexes bearing sulfate surface groups with a relatively complexes, a deep study of the adsorption isotherms is neceslow surface charge density ( 03.2 and 04.8 mC/cm 2 ) were presary to later explain the colloid stability results. The amount pared by conventional emulsion polymerization reaction, using and the orientation of the surfactant at the interface are repotassium persulfate as initiator. In order to consider the mechalated to the mechanisms of the adsorption. Considering this, nisms of the adsorption at the liquid-solid interface, adsorption isotherms under different pH and ionic strength conditions were the interest of scientists in the adsorption mechanisms of performed. The effect of the particle surface charge and the hydrosurfactants has increased over recent years.
philic portion of the surfactant on the adsorption was related with
Nonionic surfactants are widely used due to several reathe mechanisms of the adsorption by using different models pubsons; for example: (i) the properties of each compound (e.g., lished in the literature. The results show that, although the hysolubility and hence surface activity) can be modified condrophobic interaction is the driving force during the adsorption, siderably by simply changing the length of the polyoxythe interaction between the surface and polyethylene chains could ethylene group, (ii) nonionic surfactants can be mixed with be the cause of a different conformation of the surfactants on the other surfactants (e.g., ionic surfactants), (iii) these surfacsurface when the polarity of the surface changes. However, even tants are very effective in sterically stabilizing emulsions more recent models are not able to describe the conformation of and dispersions.
the surfactant on the surface.