Interactions between poly(ethylene oxide) and fatty acids sodium salts studied by surface tension measurements.
This work focuses onto the interactions between poly(ethylene oxide) (PEO) and fatty acids, in order to set their potential role of contaminants for PEO-based retention systems. Surface tension measurements were used to investigate PEO-fatty acid systems and they made it possible to clearly point out the interactions between the polymer and the sodium octadecylcarboxylates with different degrees of unsaturation. The observed interaction seems to be dependent on the fatty acids' solubility, the increase of which leads to less pronounced phenomena, which are, in contrast, emphasized by the increase in PEO chain length.
Zeno
Elisa
E
Ecole Française de Papeterie et des Industries Graphiques, B.P. 65, 38402 St-Martin d'Hères, France. elisa.zeno@webCTP.com
Beneventi
Davide
D
Carré
Bruno
B
D005227:Fatty Acids / Q000737:chemistry*; D011092:Polyethylene Glycols / Q000737:chemistry*; D017670:Sodium Compounds / Q000737:chemistry*; D012995:Solubility; D013499:Surface Properties; D013500:Surface Tension
D005227:Fatty Acids; D017670:Sodium Compounds; D011092:Polyethylene Glycols