Articles with "co2 switchable" as a keyword



CO2/N2 switchable aqueous foam stabilized by SDS/C12A surfactants: Experimental and molecular simulation studies

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Published in 2019 at "Chemical Engineering Science"

DOI: 10.1016/j.ces.2019.115218

Abstract: Abstract A novel CO2/N2 switchable aqueous foam was developed using a CO2-responsive surfactant N,N-dimethyl-N-dodecyl amine (C12A) and a conventional surfactant sodium dodecyl sulfate (SDS). The performance and mechanism of this switchable foam were studied by… read more here.

Keywords: foam; sds c12a; simulation; co2 switchable ... See more keywords
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CO2-switchable dispersion of a natural chitosan and its application as a responsive pickering emulsifier

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Published in 2018 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"

DOI: 10.1016/j.colsurfa.2018.06.068

Abstract: Abstract The natural chitosan aggregates obtained by increasing the pH of aqueous solutions are found to be responsive to CO2/N2 switching. These chitosan aggregates can be dispersed in water upon CO2 bubbling and precipitated out… read more here.

Keywords: switchable dispersion; co2 switchable; co2; natural chitosan ... See more keywords

CO2-Switchable Self-Healing Host–Guest Hydrogels

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Published in 2017 at "Macromolecules"

DOI: 10.1021/acs.macromol.7b02163

Abstract: The use of natural compounds to construct reversible networks is an attractive strategy in biomaterials design. Our design is based on a host–guest pair of natural compounds β-cyclodextrin and cholic acid through the use of… read more here.

Keywords: self healing; co2 switchable; host guest; guest ... See more keywords

A more sustainable synthesis approach for cellulose acetate using the DBU/CO2 switchable solvent system

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Published in 2021 at "Green Chemistry"

DOI: 10.1039/d1gc01508g

Abstract: Cellulose acetate was synthesized applying the DBU/CO2 switchable solvent system and a benign acetylating agent under mild conditions. High reagent conversion, a tunable degree of substitution and low cellulose backbone degradation were achieved. read more here.

Keywords: co2 switchable; cellulose acetate; dbu co2; switchable solvent ... See more keywords

Influence of a CO2-switchable additive on the surface and foaming properties of a cationic non-switchable surfactant.

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Published in 2023 at "Soft matter"

DOI: 10.1039/d3sm00273j

Abstract: Switchable materials in general and CO2-switchable materials in particular are of great interest in environmental research. The replacement of common non-switchable materials (solutions, solvents, surfactants, etc.) with their switchable counterparts has a great potential to… read more here.

Keywords: non switchable; switchable additive; switchable surfactant; surface ... See more keywords

CO2 switchable solvents for sustainable dissolution, modification, and processing of cellulose materials: a critical review

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Published in 2024 at "Green Chemistry"

DOI: 10.1039/d4gc04032e

Abstract: Cellulose is a biopolymer with numerous applications ranging from food packaging to pharmaceutical formulations. However, the sustainability and use of cellulose materials is hindered by harsh processing conditions and toxic... read more here.

Keywords: dissolution modification; switchable solvents; co2 switchable; solvents sustainable ... See more keywords

CO2-switchable surfactant-free microemulsion consisted of N,N-dimethylcyclohexylamine, ethanol and water

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Published in 2019 at "Journal of Dispersion Science and Technology"

DOI: 10.1080/01932691.2018.1555482

Abstract: Abstract N,N-Dimethylcyclohexylamine—a switchable-hydrophilicity solvent, ethanol and water could be used to prepare a CO2-switchable surfactant-free microemulsion (SFME). The ternary phase diagram was used to investigate the phase behavior of SFME. The electrical conductivity measurement, UV-visible… read more here.

Keywords: switchable surfactant; water; microemulsion; ethanol water ... See more keywords