Epoxy-Based Monoliths. A Novel Hydrophilic Separation Material for Liquid Chromatography of Biomolecules

Nguyen, Anh Gia-Tuan; Irgum, Knut

doi:10.1021/cm060645j

Cited by 59 publications

(48 citation statements)

References 18 publications

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“…As epoxies have the ability to form bicontinuous structures via polymerization induced phase separation, [20][21][22][23] this approach has been used to produce porous monoliths for chromatography and biomedical applications. 24 Mixing epoxy resin with other compounds does not, however, 4 always result in a bicontinuous structure and there is no simple method to predict the phase behavior. Depending on composition and curing temperature, monoliths with different microstructures may be obtained, ranging from connected nodules, to 3D-bicontinuous networks, or any (multiphase) combination thereof.…”

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confidence: 99%

Composition as a Means To Control Morphology and Properties of Epoxy Based Dual-Phase Structural Electrolytes

et al. 2014

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This document is the Accepted Manuscript version of a Published Work that appeared in nal form in Journal of physical chemistry C, copyright c American Chemical Society after peer review and technical editing by the publisher. To access the nal edited and published work see http://dx.doi.org/10.1021/jp507952bAdditional information: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. increasing lithium salt concentration. The miscibility of the epoxy system with the electrolyte was also improved by substitution of EMIM-TFSI with an equal weight of an aprotic organic solvent, propylene carbonate (PC); however, the window of PC concentrations which resulted in structural electrolytes with bicontinuous microstructures was very narrow; at PC concentrations above 1 wt.%, gel-like polymers with no permanent mesoporosity were obtained.

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confidence: 99%

Composition as a Means To Control Morphology and Properties of Epoxy Based Dual-Phase Structural Electrolytes

et al. 2014

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“…For several advanced applications, there is the need for easily processable, porous solids possessing such adventitious properties. Porous epoxies, polyurethanes and similar materials have been proposed for use in separations, 115 encapsulation and electrical insulation of components in microelectronics, [116][117][118] battery separators 119 and stimuli-responsive textiles. 120 As a first example of the utility of BmE-derived, nanoporous PE as a nanocasting template, we have generated nanoporous epoxy and polyurethane monoliths.…”

Section: Nanoporous Thermosetting Polymersmentioning

confidence: 99%

Nanocasting nanoporous inorganic and organic materials from polymeric bicontinuous microemulsion templates

Jones

Lodge

2012

Polym J

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Ternary blends of two homopolymers and a diblock copolymer can self-assemble into interpenetrating, three-dimensionally continuous networks with a characteristic length scale of B100 nm. In this review, we summarize our recent work demonstrating that these equilibrium fluid phases, known as polymeric bicontinuous microemulsions (BlE), can be designed as versatile precursors to nanoporous materials having pores with uniform sizes of B100 nm. As a model system, nanoporous polyethylene (PE) is derived from BlEs composed entirely of polyolefins. This monolithic material is then used as a template in the synthesis of other nanoporous materials for which structural control at the nm scale has traditionally been difficult to achieve. These materials, which include a high-temperature ceramic, polymeric thermosets and a conducting polymer, are produced by a simple nanocasting process, providing an inverse replica of the PE template. The PE is further used as a template for the production of hierarchically structured inorganic and polymeric materials by infiltration of mesostructured compounds into its pore network. The work described herein represents an unprecedented suite of nanoporous materials with well-defined pore structures prepared from a single PE template. They are anticipated to have potential application in diverse technological areas, including catalysis, separations and electronic devices.

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“…The phase separation techniques have been induced conventionally by several ways, including solvent-drying, cooling the polymer solution, changing the concentration ratio of components and in situ polymerization. [1][2][3][4][5][6][7][8][9][10][11][12][13] Among these, the solvent-drying method has been found to be the simplest and the most effective way. 4,7,11,13 Ionic liquids (ILs) consist of bulky and asymmetric organic cations such as 1-alkyl-3-methylimidazolium, 1-alkylpyridinium, N-methyl-N-alkylpyrrolidinium and ammonium ions.…”

Section: 3mentioning

confidence: 99%

3D Micromorphology Producing within Poly(lactic acid) Skeleton Using Room-Temperature Ionic Liquids: From Particulate, Fibrous or Porous Scaffolds to Beads

Shin¹,

Kim²

2012

Bulletin of the Korean Chemical Society

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We describe herein a three-dimensionally diverse micropatterning of poly(lactic acid), as a biopolymer, using 1-butyl-3-methylimidazolium-based room-temperature ionic liquids (bmim-based RTILs), [bmim]X (X = SbF 6 , PF 6 , NTf 2 , Cl). Utilizing the hydrophobic bmim-based RTILs, [bmim]X (X = SbF 6 , PF 6 , NTf 2 ) and a phase separation technique, we were able to produce white and opaque membranes with a three-dimensional structure closely packed with particles (10-50 µm in diameter). The particlulate structure, made by the assistance of [bmim]NTf 2 and DCM, interestingly transformed to a fibrous structure by using a cosolvent, e.g., DCM/CF 3 CH 2 OH. When we used an increased amount of [bmim]NTf 2 , the particles were effectively detached and macrosized (100-500 µm in diameter) and the oval-shaped beads were obtained in a powder form. By varying the counter-anion type of the imidazolium-based RTIL, for example from NTf 2 − to Cl − , the particulate 3D-morphology was once more transformed to a porous structure. These reserch results could be potentially useful, as a method to fabricate particulate scaffolds, fibrous or porous scaffolds, and beads as a biopolymer device in diverse fields including drug delivery, tissue regeneration, and biomedical engineering.

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Epoxy-Based Monoliths. A Novel Hydrophilic Separation Material for Liquid Chromatography of Biomolecules

Cited by 59 publications

References 18 publications

Composition as a Means To Control Morphology and Properties of Epoxy Based Dual-Phase Structural Electrolytes

Composition as a Means To Control Morphology and Properties of Epoxy Based Dual-Phase Structural Electrolytes

Nanocasting nanoporous inorganic and organic materials from polymeric bicontinuous microemulsion templates

3D Micromorphology Producing within Poly(lactic acid) Skeleton Using Room-Temperature Ionic Liquids: From Particulate, Fibrous or Porous Scaffolds to Beads

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