2008
DOI: 10.1016/j.jcis.2008.07.032
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Shear and extensional rheology of solutions of mixtures of poly(ethylene oxide) and anionic surfactants in ionic environments

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Cited by 11 publications
(5 citation statements)
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“…However, the PSP values depend on polymer concentration, in agreement with the previous reports on P 0 S À systems including PEO-SDS, PEO-SBDS, and PVP-SDS. 61,91 The changes in surface tension and steady shear viscosity are influenced by the surfactant-like and the polymerlike behavior of the polymer-surfactant complex, respectively. 25 Fig.…”
Section: Critical Aggregation Concentration (Cac) and Polymer Saturation Point (Psp)mentioning
confidence: 99%
See 1 more Smart Citation
“…However, the PSP values depend on polymer concentration, in agreement with the previous reports on P 0 S À systems including PEO-SDS, PEO-SBDS, and PVP-SDS. 61,91 The changes in surface tension and steady shear viscosity are influenced by the surfactant-like and the polymerlike behavior of the polymer-surfactant complex, respectively. 25 Fig.…”
Section: Critical Aggregation Concentration (Cac) and Polymer Saturation Point (Psp)mentioning
confidence: 99%
“…29,37,[49][50][51][52][53][54] Furthermore, most techniques are better suited for fluids with relatively high viscosity, and typically the range of accessible strain or strain rates is rather limited. 37,44,47,50,51,55 Table 1 summarizes the published datasets [56][57][58][59][60][61][62][63] on P 0 S À systems acquired with two commercially-available techniques: RFX opposed jet and CaBER (capillary breakup extensional rheometer). The measurements rely on a flexible, relatively high molecular weight (M w ) polymer, and the few data points included show that the critical extensional rate, _ e c for the onset of strain hardening, decreases on surfactant addition.…”
Section: Introductionmentioning
confidence: 99%
“…0.01 and 0.1 mol/L, were selected, and the samples were aged for 72 h in PEG-20,000/SDS solutions at two different temperatures of 70°C and 22°C. These two levels of salinity were selected based on the previous findings in the literature (Torres et al 2008;Müller et al 2003). Müller et al (2003) have found that 0.1 mol/L is a relatively high concentration to observe the aggregation behaviour in the mixture of SDS/PEG.…”
Section: Contact Anglementioning
confidence: 99%
“…Different explanations may be invoked to justify this observation. The most accepted one is that there is a chain contraction due to the intense intramolecular hydrophobic association junctions (Hoff et al, 2001;Samii, Karlstroem, & Lindman, 1991;Torres, Müller, Szidarovszky, & Sáez, 2008). The binding of surfactant molecules to semiflexible polymers such as EHEC or HPMC may modify the respective stiffness and this may, in turn, induce a coil-to-globule Fig.…”
Section: Monitoring the Association Between Polymer And Surfactantmentioning
confidence: 99%