Results 161 to 170 of about 1,340 (184)
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Synthesis and functionalisation of polyHIPE® beads
Reactive and Functional Polymers, 2002Discrete spheroidal particles of interconnected microcellular foams were synthesised by suspension polymerisation of a high internal phase emulsion. These particles have been surface-grafted with functionalised macromolecular chains by controlled radical polymerisation using a covalently-bond TEMPO initiator.
Alexandre Desforges +3 more
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Biodegradable Fumarate-Based PolyHIPEs as Tissue Engineering Scaffolds
Biomacromolecules, 2007PolyHIPEs show great promise as tissue engineering scaffolds due to the tremendous control of pore size and interconnectivity afforded by this technique. Highly porous, fully biodegradable scaffolds were prepared by polymerization of the continuous phase of high internal phase emulsions (HIPEs) containing the macromer poly(propylene fumarate) (PPF) and
Elizabeth M, Christenson +4 more
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Polymerization of Dicyclopentadiene/Styrene in PolyHIPE
Materials Science Forum, 2015A series of porous poly(styrene-divinylbenzene) monoliths (polyHIPE) was synthesized by high internal phase emulsions (HIPE). The effects of the ethanol contents on the microstructure of the polyHIPE were characterized by scanning electron microscopy and mercury intrusion porosimeter.
Wang Fa Xu +4 more
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A new route to carbon black filled polyHIPEs
Soft Matter, 2006A series of carbon black filled polyHIPEs was synthesised following a new preparation protocol. 1 wt% carbon black was dispersed in the monomer mixture. In order to enhance the stability of the suspension, polymer grafting of carbon black was performed by initiating the polymerisation prior to emulsifying the formulation. All of the carbon black filled
Angelika, Menner +2 more
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Polymerization of MMA in polyHIPEs by RATRP
Journal of Polymer Research, 2014A series of polymerized high internal phase emul- sions (polyHIPEs) with different cavities and windows (named PSD) were used as microreactors. Then methyl meth- acrylate (MMA) was polymerized in the spaces of the polyHIPE by reverse atom transfer radical polymerization (RATRP).
F. M. Sun +3 more
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PolyHIPEs from Divinyl Adipate: Preparation and Degradability
Macromolecular Chemistry and Physics, 2013Using a high internal phase emulsion templating approach, highly porous open cellular polymers are prepared from divinyl adipate (DVA). The morphological structure of the monoliths includes cavities in the diameter range of around 5–25 μm and secondary interconnecting pores approximately 1 μm in diameter.
Marko Turnšek, Peter Krajnc
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Ionic Liquids as Internal Phase for Non‐Aqueous PolyHIPEs
Macromolecular Rapid Communications, 2011AbstractStable high internal phase emulsions (HIPEs) with the ionic liquid 1‐ethyl‐3‐methylimidazolium bis(trifluoromethyl‐sulfonyl)imide as dispersed phase were prepared and polymerised thermally into polyHIPEs. All polyHIPEs exhibited pore morphologies similar to that of polyHIPEs obtained with an aqueous dispersed phase.
Shirshova N. +2 more
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Industrial & Engineering Chemistry Research, 1999
A novel type of highly porous polymeric monolith called PolyHipe has been applied as a support for an immobilized catalyst (sulfonic acid). Somewhat differently from a conventional packed bed where the reaction mixture flows around the porous catalytic particles, here, the reaction mixture is forced through the pores of the monolith.
Ottens, M +4 more
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A novel type of highly porous polymeric monolith called PolyHipe has been applied as a support for an immobilized catalyst (sulfonic acid). Somewhat differently from a conventional packed bed where the reaction mixture flows around the porous catalytic particles, here, the reaction mixture is forced through the pores of the monolith.
Ottens, M +4 more
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Polyhipe foam materials as filtration media
Filtration & Separation, 1995A novel method of preparing low-density microporous polymeric foam materials has been utilised to produce media which are effective in crossflow microfiltration applications. Polyhipe polymer (PHP) is produced by the polymerisation of a high-internal-phase emulsion (HIPE), resulting in a homogeneous, highly porous, low-density, open cellular material ...
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Synthesis of degradable polyHIPEs by AGET ATRP
Polymer, 2013Abstract Conditions to synthesize a degradable polymerized high internal phase emulsion (PolyHIPE) by a controlled radical polymerization (CRP) method, atom transfer radical polymerization (ATRP), have been developed for the first time. Activators generated by electron transfer (AGET) ATRP were used to copolymerize 2-ethylhexyl methacrylate (EHMA ...
Melissa Lamson +3 more
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