PolyHIPEs: High-Porosity Polymers through Emulsion Templating
Porous polymers are essential for catalysis, chromatography, separation, absorption, ion exchange, insulation, tissue engineering, drug delivery, and energy damping applications, to name but a few. PolyHIPEs (PHs) are novel, high-porosity polymer monoliths with unique porous structures that are typically templated within water-in-oil (w/o) high internal phase emulsions (HIPEs) and synthesized using free radical polymerization. These w/o HIPEs typically consist of an external (continuous) phase (monomers, crosslinking comonomers, and emulsifier) and from 74 % to over 90 % internal (dispersed) phase (water and a stabilizing salt). The internal phase can be removed through holes within the thin polymer film that surrounds the discrete internal phase droplets, leaving a highly interconnected, high-porosity, void structure (average diameters range from 10 to 100 µm). Similarly, Hydrogel PHs (HG-PHs) are novel, high-porosity hydrogel monoliths with unique porous structures that are typically templated within oil-in-water (o/w) HIPEs and synthesized using free radical polymerization. These o/w HIPEs typically consist of an external (continuous) phase (water, monomers, crosslinking comonomers, and emulsifier) and from an internal (dispersed) phase (organic liquid). The advantages of PHs and HG-PHs include their low densities (as low as 0.03 g/cm3), their ability to absorb large amounts of liquid (typically 9 g/g), and their flow-through capabilities.
(90 % internal phase, styrene/divinylbenzene = 9/1).
Current Research
- Emulsion-templated Porous Polymers
- Emulsion-templated Polymers for Encapsulation
- Simultaneous Emulsion-templating and Foaming
- Thermal Energy Storage and Release
- Superabsorbents
- Broad-spectrum Absorbents
- Adsorbents for Water Decontamination
- Porous Polymers and Carbons from Renewable Resources
- Highly Robust Hydrogels
- Biodegradable Scaffolds for Tissue Engineering
- Hierarchical Porosity in Polymers and Carbons
- Bicontinuous Hydrogels / Hydrophobic Polymers for Controlled Release
- Shape Memory Polymers and Hydrogels
- Stimulus-response Polymers: Temperature, pH, Salinity
- Zwitterionic Hydrogels and Anti-polyelectrolyte Behaviour
- Highly Porous Simultaneous Interpenetrating Polymer Networks
- Nanoparticle and Block Copolymer Stabilization for Emulsion Templating
- Step-growth and Controlled Radical Polymerizations for Emulsion Templating
Emulsion-templated Monoliths Based on PIM-1 Monomers: Hierarchical Porosity and Dye Adsorption
β-Cyclodextrin-based Macroporous Monoliths: One-pot Oil-in-oil Emulsion Templating and Adsorption
Highly Efficient and Tunable Miktoarm Stars for HIPE Stabilization and PolyHIPE Synthesis
“Encapsulating an organic phase change material within emulsion-templated poly(urethane urea)s”
“Microphase-Separated Macroporous Polymers from an Emulsion-Templated Reactive Triblock Copolymer”
“Hydrogels through emulsion templating: sequential polymerization and double networks”
“Hierarchically porous carbons from an emulsion-templated, urea-based deep eutectic”
“Doubly-crosslinked, emulsion-templated hydrogels through reversible metal coordination”
“Emulsion-templated Polymers: Contemporary Contemplations”
“Superabsorbent, High Porosity, PAMPS-Based Hydrogels through Emulsion Templating”
“High Porosity, Responsive Hydrogel Copolymers from Emulsion Templating”
“PolyHIPEs: Recent advances in emulsion-templated porous polymers”
“Emulsion-templated Porous Polymers: A Retrospective Perspective”
“‘Ball of String’ Textured Protuberances within a Porous Shape Memory Polymer”
“Synthesis of Degradable PolyHIPEs by AGET ATRP”
“PEO-Based Star Copolymers as Stabilizers for Water-in-Oil or Oil-in-Water Emulsions”
“Shape Memory Polymer Foams from Emulsion Templating”
“One-Pot Synthesis of Elastomeric Monoliths Filled with Individually Encapsulated Liquid Droplets”
“One-Pot Emulsion-Templated Synthesis of an Elastomer-Filled Hydrogel Framework”
“Porous Carbon Monoliths from Emulsion-Templated Polyacrylonitrile”
“Emulsion templated bicontinuous hydrophobic-hydrophilic polymers: Loading and release”
“Polymerized Pickering HIPEs: Effects of Synthesis Parameters on Porous Structure”
“Porous, Biodegradable, Emulsion-templated Polyacrylate: Structures, Properties, and Cell Growth”
“Porous Polyurethanes Synthesized within High Internal Phase Emulsions”
“Enhancing Hydrophilicity in a Hydrophobic Porous Emulsion-Templated Polyacrylate”
“Biodegradable Porous Polymers through Emulsion Templating”