Contamination in Sodium Dodecyl Sulfate Solutions : Insights from the Measurements of Surface Tension and Surface Rheology

The presence of contamination in sodium dodecyl sulfate (SDS) solutions in the form of dodecanol (LOH) is known to drastically affect the resulting interfacial properties such as surface tension (SFT) and rheology. Dodecanol molecules, which are the product of SDS hydrolysis and are inherently prese...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1992. - 38(2022), 23 vom: 14. Juni, Seite 7179-7189
1. Verfasser: Correia, Elton L (VerfasserIn)
Weitere Verfasser: Brown, Nick, Ervin, Aanahita, Papavassiliou, Dimitrios V, Razavi, Sepideh
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
LEADER 01000naa a22002652 4500
001 NLM341622419
003 DE-627
005 20231226012215.0
007 cr uuu---uuuuu
008 231226s2022 xx |||||o 00| ||eng c
024 7 |a 10.1021/acs.langmuir.2c00460  |2 doi 
028 5 2 |a pubmed24n1138.xml 
035 |a (DE-627)NLM341622419 
035 |a (NLM)35640061 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Correia, Elton L  |e verfasserin  |4 aut 
245 1 0 |a Contamination in Sodium Dodecyl Sulfate Solutions  |b Insights from the Measurements of Surface Tension and Surface Rheology 
264 1 |c 2022 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Revised 14.06.2022 
500 |a published: Print-Electronic 
500 |a Citation Status PubMed-not-MEDLINE 
520 |a The presence of contamination in sodium dodecyl sulfate (SDS) solutions in the form of dodecanol (LOH) is known to drastically affect the resulting interfacial properties such as surface tension (SFT) and rheology. Dodecanol molecules, which are the product of SDS hydrolysis and are inherently present in SDS solutions, have higher surface activity compared to SDS because they are less soluble in water. A characteristic dip in the SFT isotherm is an indicator of the dodecanol contamination in the sample. The presence of an electrolyte in the solution impacts the surface activity of SDS and its critical micelle concentration, and could yield SFT isotherms that closely match those obtained for pure SDS samples. The interpretation of the isotherms in such cases could thus lead to misinterpretation of the surface purity. In this work, we have examined the SFT isotherms for SDS solutions in both the absence and presence of electrolyte. We have fitted the isotherms to three different thermodynamic adsorption models to estimate the amount of dodecanol present in the sample. We have applied the estimated values for the LOH content in a two-component rheological model to predict the viscoelasticity of such surfactant-laden surfaces. We have compared these results with the experimentally measured interfacial rheological properties. Our findings demonstrate that the presence of impurities can be captured under dynamic expansion and contractions, even for solutions containing background electrolyte 
650 4 |a Journal Article 
700 1 |a Brown, Nick  |e verfasserin  |4 aut 
700 1 |a Ervin, Aanahita  |e verfasserin  |4 aut 
700 1 |a Papavassiliou, Dimitrios V  |e verfasserin  |4 aut 
700 1 |a Razavi, Sepideh  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Langmuir : the ACS journal of surfaces and colloids  |d 1992  |g 38(2022), 23 vom: 14. Juni, Seite 7179-7189  |w (DE-627)NLM098181009  |x 1520-5827  |7 nnns 
773 1 8 |g volume:38  |g year:2022  |g number:23  |g day:14  |g month:06  |g pages:7179-7189 
856 4 0 |u http://dx.doi.org/10.1021/acs.langmuir.2c00460  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_22 
912 |a GBV_ILN_350 
912 |a GBV_ILN_721 
951 |a AR 
952 |d 38  |j 2022  |e 23  |b 14  |c 06  |h 7179-7189