The dynamics of surface adsorption and foam formation of carbonate modified nonionic surfactants

Lima, Michelle Tupinamba; Kurt-Zerdeli, Sevgi N.; Brüggemann, Daniel; Spiering, Vivian J.; Gradzielski, Michael; Schomäcker, Reinhard

doi:10.1016/j.colsurfa.2019.124386

Cited by 9 publications

(1 citation statement)

References 25 publications

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“…Based on an approach using CO 2 as the comonomer and zinc hexacyanocobaltate as the double metal cyanide (DMC) catalyst, different CO 2 -containing dodecyl ethoxylate surfactants had been synthesized and studied previously. This includes surface activity and thermodynamics of micellization of these types of surfactants, and their hydrophilic–lipophilic balance (HLB) values were found to be suitable for detergency. , The effect of the CO 2 unit was to increase systematically the hydrophobic interactions, leading to lowered critical micellar concentrations (cmcs). In addition, one observes a lower hydration of the head group with increasing incorporation of hydrophobic CO 2 units, together with a less exothermic micellization process .…”

Section: Introductionmentioning

confidence: 99%

Structural Characterization of Nonionic Surfactant Micelles with CO₂/Ethylene Oxide Head Groups and Their Temperature Dependence

et al. 2021

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Using CO2 as a resource in the production of materials is a viable alternative to conventional, petroleum-based raw materials and therefore offers great potential for more sustainable chemistry. This study presents a detailed structural characterization of aggregates of nonionic dodecyl surfactants with different amounts of CO2 substituting ethylene oxide (EO) in the head group. The micellar structure was characterized as a function of concentration and temperature by dynamic and static light scattering and, in further detail, by small-angle neutron scattering (SANS). The influence of the CO2 unit in the hydrophilic EO group is systematically compared to the incorporation of propylene oxide (PO) and propiolactone (PL). The surfactants with carbonate groups in their head groups form ellipsoidal micelles in an aqueous solution similar to conventional nonionic surfactants, becoming bigger with increasing CO2 content. In contrast, the incorporation of PO units hardly alters the behavior, while the incorporation of a PL unit has an effect comparable to the CO2 unit. The analysis of the SANS data shows decreasing hydration with increasing CO2 and PL content. By increasing the temperature, a typical sphere–rod transition is observed, where CO2 surfactants show a much higher elongation with increasing temperature, which is correlated with the reduced cloud point and a lower extent of head group hydration. Our findings demonstrate that CO2-containing surface-active compounds are an interesting, potentially “greener” alternative to conventional nonionic surfactants.

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Section: Introductionmentioning

confidence: 99%

Structural Characterization of Nonionic Surfactant Micelles with CO₂/Ethylene Oxide Head Groups and Their Temperature Dependence

et al. 2021

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Excellent interfacial bonding in UHMWPE fiber/ epoxy resin composites fabricated via a swelling approach

Gao

Wang

et al. 2023

J Polym Res

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A study on the asymptotic approximation for surfactant adsorption onto a spherical air-water interface

Hussain

Shen

et al. 2022

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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The dynamics of surface adsorption and foam formation of carbonate modified nonionic surfactants

Cited by 9 publications

References 25 publications

Structural Characterization of Nonionic Surfactant Micelles with CO₂/Ethylene Oxide Head Groups and Their Temperature Dependence

Structural Characterization of Nonionic Surfactant Micelles with CO₂/Ethylene Oxide Head Groups and Their Temperature Dependence

Excellent interfacial bonding in UHMWPE fiber/ epoxy resin composites fabricated via a swelling approach

A study on the asymptotic approximation for surfactant adsorption onto a spherical air-water interface

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The dynamics of surface adsorption and foam formation of carbonate modified nonionic surfactants

Cited by 9 publications

References 25 publications

Structural Characterization of Nonionic Surfactant Micelles with CO2/Ethylene Oxide Head Groups and Their Temperature Dependence

Structural Characterization of Nonionic Surfactant Micelles with CO2/Ethylene Oxide Head Groups and Their Temperature Dependence

Excellent interfacial bonding in UHMWPE fiber/ epoxy resin composites fabricated via a swelling approach

A study on the asymptotic approximation for surfactant adsorption onto a spherical air-water interface

Contact Info

Product

Resources

About

Structural Characterization of Nonionic Surfactant Micelles with CO₂/Ethylene Oxide Head Groups and Their Temperature Dependence

Structural Characterization of Nonionic Surfactant Micelles with CO₂/Ethylene Oxide Head Groups and Their Temperature Dependence