The interaction of fluorocarbon-containing hydrophobically modified sodium polyacrylic acid(FMPAANa) (o.5wt%) with various surfactants (anionic, nonionic and cationic)has been investigated by rheological measurements. Different rheological behaviors are displayed for ionic surfactants and nonionic surfactants. Fluorinated surfactants have stronger affinity with polyelectrolyte hydrophobes comparing with hydrogenated surfactants. The hydrophobic association of FMPAANa with a cationic surfactant (CTAB) and a fluorinated nonionic surfactant (FC!71) is much strongerthan with a nonionic surfactant NP7.5) and an anionicsurfactant (FC143). Further investigation of the effects of temperature on solution properties shows that the dissociation energy Em is correlated to thestrength of the aggregated junctions.
Guo JF,Zhuang DQ,Zhou H,et al. Rheological properties of the aqueous solution for fluorocarbon-containing hydrophobically modified sodium polyacrylic acid with various surfactants.[J]. Chin. J. Chem.,2001,19(12):1198-1204.
