Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 12, Issue 35, Pages 38845-38861Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.0c07993
Keywords
oil-in-oil emulsion; nonaqueous emulsion; block copolymer; Pickering particles; surfactants
Funding
- Australian Research Council (ARC) Centre of Excellence in Convergent Bio-Nano Science and Technology [CE140100036]
- PEEF Chief Minister Merit Scholarship (CMMS)
- National Science Foundation [1955170]
- NHMRC-ARC Dementia Research Development Fellowship [APP1109945]
- ARC from the Australian Research Council [FT190100572]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1955170] Funding Source: National Science Foundation
- Australian Research Council [FT190100572] Funding Source: Australian Research Council
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Emulsions are mixtures of two immiscible liquids in which droplets of one are dispersed in a continuous phase of the other. The most common emulsions are oil-water systems, which have found widespread use across a number of industries, for example, in the cosmetic and food industries, and are also of advanced scientific interest. In addition, the past decade has seen a significant increase in both the design and application of nonaqueous emulsions. This has been primarily driven by developments in understanding the mechanism of effective stabilization of oil-in-oil (o/o) systems, either using block copolymers (BCPs) or solid (Pickering) particles with appropriate surface functionality. These systems, as highlighted in this review, have enabled emergent applications in areas such as pharmaceutical delivery, energy storage, and materials design (e.g., polymerization, monolith, and porous polymer synthesis). These o/o emulsions complement traditional emulsions that utilize an aqueous phase and allow the use of materials incompatible with water. We assess recent advances in the preparation and stabilization of o/o emulsions, focusing on the identity of the stabilizer (BCP or particle), the interplay between stabilizer and oils, and highlighting applications and opportunities associated with o/o emulsions.
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