2019
DOI: 10.1021/acs.chemmater.9b02398
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Bicontinuous Intraphase Jammed Emulsion Gels: A New Soft Material Enabling Direct Isolation of Co-Continuous Hierarchial Porous Materials

Abstract: Materials with hierarchical, bicontinuous porosity are desirable for numerous applications, providing a continuous pathway for reactants and products and a large interfacial surface area for reaction/storage. Herein, we demonstrate a low-energy and flexible route to dual scale co-continuous materials via a new class of soft material first reported herebicontinuous intraphase-jammed emulsion gels, referred here as bipjels. Alumina-coated silica nanoparticles (AlO-SiO NPs) are shown to stabilize bicontinuous em… Show more

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Cited by 16 publications
(17 citation statements)
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References 27 publications
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“…1 ). Note that realizing bicontinuous structures with particles constraint within one of the liquid domains has been previously proposed in polymer blends and bicontinuous intraphase jammed emulsion gels (bipjel) 16 , 17 . However, there are major distinctions between SeedGel and the previous demonstrations.…”
Section: Introductionmentioning
confidence: 89%
See 1 more Smart Citation
“…1 ). Note that realizing bicontinuous structures with particles constraint within one of the liquid domains has been previously proposed in polymer blends and bicontinuous intraphase jammed emulsion gels (bipjel) 16 , 17 . However, there are major distinctions between SeedGel and the previous demonstrations.…”
Section: Introductionmentioning
confidence: 89%
“…However, there are major distinctions between SeedGel and the previous demonstrations. Whereas a strong attractive force between particles is needed for previous systems 16 , 17 , the particles in a SeedGel have a net repulsion or no attraction between them in liquid states. In addition, the SeedGel formation is driven by the local phase separation of solvents while the bulk solvent phase separation is required in the intraphase gelation of the previous systems 16 , 17 .…”
Section: Introductionmentioning
confidence: 99%
“…[3] So far, many efforts have been made to improve the separation performance of the second generation PS monoliths, including i) hypercrosslinking of PS skeleton via Friedel-Crafts reaction, [6,7,[9][10][11] ii) incorporation of macro-and microphase separation to produce hierarchically porous PS monoliths with surface areas of several hundred m 2 g −1 , [12] iii) polymerization of pickeringhigh internal phase emulsion (HIPE) to prepare highly permeable PS monoliths, [13] iv) living radical polymerization of the HIPEs to produce PS monoliths with well-defined bicontinuous morphology. [14] Briefly, the hierarchical structure refers to the monoliths having both nano-and microporosity, [15,16] and the bicontinuous structure means that the monoliths have both continuous skeletons and interconnected macropores. [14] Obviously, the hierarchically bicontinuous polymer monoliths are especially desirable for liquid chromatography, catalysis, and biomedical applications, owing to their superior mass transport properties resulting from the accelerated convective flow and alleviated diffusion resistance within monoliths.…”
Section: Introductionmentioning
confidence: 99%
“…[ 23 ] This will result in the synergistic self‐assembly of ADG and PF127 at the oil/water interface and make the interface behave like an elastic sheet to form the bicontinuous MIPE, which is similar to the bicontinuous intraphase jammed emulsion gel (Bijel) stabilized by colloidal particles. [ 15,24 ] The bicontinuous MIPE overcomes the shortcoming of conventional MIPE that will produce polyMIPE with few interconnected cavities or even closed‐cell structure. [ 25 ] Besides oil surfactant, the ADGs have another two roles during the preparation process: formation of glycopolymer surfaces of the PS monoliths after polymerization, and as AGET ATRP macroinitiator to promise the homogeneous skeletons of the PS monoliths with a replica of the bicontinuous MIPE structure.…”
Section: Introductionmentioning
confidence: 99%
“…Simultaneous LSCM and rheological tests (confocal rheology) have been used to probe sol–gel transitions, the flow of concentrated colloidal suspensions, and spinodally decomposed jammed emulsion systems . They provide an unprecedented level of detail to the structure–property relationships of soft materials by offering a 4D visualization (3D plus time) of the microstructure while probing their viscoelastic properties.…”
Section: Introductionmentioning
confidence: 99%