A dilute nematic gel produced by intramicellar segregation of two polyoxyethylene alkyl ether carboxylic acids

Denk, Patrick; Matthews, Lauren; Prévost, Sylvain; Zemb, Thomas; Kunz, Werner

doi:10.1016/j.jcis.2024.01.014

Journal of Colloid and Interface Science

2024

DOI: 10.1016/j.jcis.2024.01.014

|View full text |Cite

A dilute nematic gel produced by intramicellar segregation of two polyoxyethylene alkyl ether carboxylic acids

Patrick Denk,

Lauren Matthews,

Sylvain Prévost

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article1

Relationship

Self Cite0

Independent1

Authors

Journals

Cited by 1 publication

References 84 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Formulating additives in thermoresponsive surfactant-based nematic liquid crystals

Denk,

Matthews,

Zemb

et al. 2024

Tenside Surfactants Detergents

View full text Add to dashboard Cite

Bicelles can be formed by mixing in given mole fractions two ethoxylated alkyl ether carboxylic acid surfactants of very different HLB in water. We determine the effect of adding three of the most used additives in formulation in health- and home care: propylene glycol, glycerol, and ethanol. The effects of additives are determined and compared in a concentrated isotropic phase above the LCST, a pseudo-lamellar phase, and a discotic nematic phase. The two latter are birefringent, and the nematic phase is viscoelastic. Propylene glycol acts as a co-solvent, improving the temperature stability of the nematic phase up to 20 wt% propylene glycol. Further addition of propylene glycol reduces the phase transition temperatures, inducing microstructural changes due to headgroup dehydration and preferential solubilization of the hydrophilic short chain surfactant. Glycerol acts as an anti-solvent, progressively decreasing phase transition temperatures by dehydration of headgroups. Ethanol is a good co-solvent for the surfactant-mixture. Adding up to 5 wt% ethanol increases the temperature stability of the nematic phase. Higher concentrations of ethanol lead to a single isotropic phase with increasingly molecular dissolution of the surfactants. The effect of the considered additives on molecular packing is followed by high resolution X-ray scattering.

show abstract

Formulating additives in thermoresponsive surfactant-based nematic liquid crystals

Denk,

Matthews,

Zemb

et al. 2024

Tenside Surfactants Detergents

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

A dilute nematic gel produced by intramicellar segregation of two polyoxyethylene alkyl ether carboxylic acids

Cited by 1 publication

References 84 publications

Formulating additives in thermoresponsive surfactant-based nematic liquid crystals

Formulating additives in thermoresponsive surfactant-based nematic liquid crystals

Contact Info

Product

Resources

About