Polymerizations in oil-in-oil emulsions using 2D nanoparticle surfactants

Rodier, Bradley J.; Leon, Al de; Hemmingsen, Christina M.; Pentzer, Emily

doi:10.1039/c7py01819c

Cited by 41 publications

(51 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The ability to switch continuous phases in such emulsions simply by switching the small‐molecule amine surfactant interfacing with the GO came as a surprise, given prior work from Al‐Lohedan and co‐workers using 2D nanoclays and reactive surfactants that did not allow for a fine tuning of the interfacial interactions needed to invert oil‐in‐oil emulsions . GO‐surfactant stabilized oil‐in‐oil emulsions have also been used for carrying out polymerizations, yielding in turn hierarchically complex and functional materials, including foams, capsules, and particulates …”

Section: Simple All‐liquid Devicesmentioning

confidence: 99%

Building Reconfigurable Devices Using Complex Liquid–Fluid Interfaces

et al. 2019

View full text Add to dashboard Cite

imparts novel mechanical and functional properties to the macroscopic interface itself. These properties include size-and charge-selective pathways for molecules and particulates, shear and compressive moduli, and selective binding and reaction sites. Complex interfaces can then be used to generate complex, macroscopic, all-liquid materials with very high surface areas that have unique properties, such as compartmentalization, communication between compartments, and the ability to move and reconfigure. With the rapid growth in the study of complex materials made from interfacially structured liquids, there is a need to review the field from the funda-Liquid-fluid interfaces provide a platform both for structuring liquids into complex shapes and assembling dimensionally confined, functional nanomaterials. Historically, attention in this area has focused on simple emulsions and foams, in which surface-active materials such as surfactants or colloids stabilize structures against coalescence and alter the mechanical properties of the interface. In recent decades, however, a growing body of work has begun to demonstrate the full potential of the assembly of nanomaterials at liquid-fluid interfaces to generate functionally advanced, biomimetic systems. Here, a broad overview is given, from fundamentals to applications, of the use of liquid-fluid interfaces to generate complex, all-liquid devices with a myriad of potential applications. Figure 2.Interactions between particles attached to liquid-fluid interfaces. a) Dipole-dipole interactions between adsorbed particles due to asymmetric charge distributions near the surface of particles at interfaces. Reproduced with permission. [34] Copyright 1980, American Physical Society. b) Dipole-dipole interactions give rise to 2D colloidal crystals with large lattice spacings. Scale bar, 50 µm. Reproduced with permission. [36]

show abstract

Section: Simple All‐liquid Devicesmentioning

confidence: 99%

Building Reconfigurable Devices Using Complex Liquid–Fluid Interfaces

et al. 2019

View full text Add to dashboard Cite

show abstract

“…50 The ideal catalyst can maintain its activity for a relatively long time without which can be achieved if it is able to periodically return to its initial state during the catalytic reactions. Such a process usually creates reaction cycles that continuously activate PMS without consuming the catalyst, as shown in eqn ( 4)- (8). For PMS, transition metal oxides have been reported to have such properties.…”

Section: Catalytic Oxidation Of Bpa Using Con-armored Particlesmentioning

confidence: 99%

“…For PMS, transition metal oxides have been reported to have such properties. 51,52 An overview of the reactions between CONs, PMS, and BPA are shown in eqn ( 4)- (8)…”

Section: Catalytic Oxidation Of Bpa Using Con-armored Particlesmentioning

confidence: 99%

“…[4][5][6] Many research groups, including our own, have used graphene oxide (GO) nanosheets to stabilize oil-in-water emulsions, with more recent efforts towards modifying the surface of the nanosheets to enable them to stabilize other fluid-fluid combinations (e.g., ionic liquid-water, ionic liquid-oil, oil-oil, etc.). [7][8][9][10][11][12][13][14][15][16][17] We have also recently demonstrated that transition metal carbide (MXene) and transition metal oxide (cobalt oxide) nanosheets can stabilize oil-in-water emulsions, if first flocculated by simple inorganic salt such as NaCl. 18,19 Compared to GO, these inorganic 2D surfactants are expected to not only provide kinetic stability to the emulsion, but to also impart favorable performance properties to any composite structures formed.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Polymer particles armored with cobalt oxide nanosheets for the catalytic degradation of bisphenol A

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

“…This is a rather rare example of such an emulsion because these two solvents are usually considered to be miscible. 217 …”

Section: Design Of Pickering Emulsifiers With Tunable Surface Wettabimentioning

confidence: 99%

Pickering Emulsifiers Based on Block Copolymer Nanoparticles Prepared by Polymerization-Induced Self-Assembly

Hunter

Armes

2020

Langmuir

View full text Add to dashboard Cite

Block copolymer nanoparticles prepared via polymerization-induced self-assembly (PISA) represent an emerging class of organic Pickering emulsifiers. Such nanoparticles are readily prepared by chain-extending a soluble homopolymer precursor using a carefully selected second monomer that forms an insoluble block in the chosen solvent. As the second block grows, it undergoes phase separation that drives in situ self-assembly to form sterically stabilized nanoparticles. Conducting such PISA syntheses in aqueous solution leads to hydrophilic nanoparticles that enable the formation of oil-in-water emulsions. Alternatively, hydrophobic nanoparticles can be prepared in non-polar media (e.g., n -alkanes), which enables water-in-oil emulsions to be produced. In this review, the specific advantages of using PISA to prepare such bespoke Pickering emulsifiers are highlighted, which include fine control over particle size, copolymer morphology, and surface wettability. This has enabled various fundamental scientific questions regarding Pickering emulsions to be addressed. Moreover, block copolymer nanoparticles can be used to prepare Pickering emulsions over various length scales, with mean droplet diameters ranging from millimeters to less than 200 nm.

show abstract

Polymerizations in oil-in-oil emulsions using 2D nanoparticle surfactants

Abstract: Oil-in-oil emulsions are especially attractive for compartmentalized reactions with water-sensitive monomers which cannot be used with traditional oil/water emulsions.

Cited by 41 publications

References 41 publications

Building Reconfigurable Devices Using Complex Liquid–Fluid Interfaces

Building Reconfigurable Devices Using Complex Liquid–Fluid Interfaces

Polymer particles armored with cobalt oxide nanosheets for the catalytic degradation of bisphenol A

Pickering Emulsifiers Based on Block Copolymer Nanoparticles Prepared by Polymerization-Induced Self-Assembly

Contact Info

Product

Resources

About