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Hypercrosslinked polyHIPEs as precursors to designable, hierarchically porous carbon foams

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Title: Hypercrosslinked polyHIPEs as precursors to designable, hierarchically porous carbon foams
Authors: Woodward, RT
Jobbe-Duval, A
Marchesini, S
Anthony, DB
Petit, C
Bismarck, A
Item Type: Journal Article
Abstract: Hierarchically porous carbon foams were produced by carbonization of hypercrosslinked polymerized high internal phase water-in-styrene/divinylbenzene emulsions (HIPEs). The hypercrosslinking of these poly(ST-co-DVB)HIPEs was achieved using a dimethoxymethane external crosslinker to ‘knit’ together aromatic groups within the polymers using FriedelCrafts alkylation. By varying the amount of divinylbenzene (DVB) in the HIPE templates and subsequent polymers, the BET surface area and micropore volume of the hypercrosslinked analogues can be varied systematically, allowing for the production of carbon foams, or ‘carboHIPEs’, with varied surface areas, micropore volumes and pore-size distributions. The carboHIPEs retain the emulsion-templated macropores of the original polyHIPE, display excellent electrical conductivities and have surface areas of up to 417 m2/g, all the while eliminating the need for inorganic templates. The use of emulsion templates allows for pourable, mouldable precursors to designable carbonaceous materials.
Issue Date: 20-Mar-2017
Date of Acceptance: 17-Mar-2017
URI: http://hdl.handle.net/10044/1/45697
DOI: https://dx.doi.org/10.1016/j.polymer.2017.03.042
ISSN: 0032-3861
Start Page: 146
End Page: 153
Journal / Book Title: Polymer
Volume: 115
Copyright Statement: © 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/)
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/J014974/1
EP/K01658X/1
Keywords: Science & Technology
Physical Sciences
Polymer Science
INTERNAL PHASE EMULSIONS
BATTERY ANODE MATERIALS
LOW-COST ADSORBENTS
SURFACE-AREA
MICROPOROUS POLYMERS
TEMPLATED POLYMERS
PORE-SIZE
MONOLITHS
POLYSTYRENE
ADSORPTION
Polymers
03 Chemical Sciences
09 Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering
Chemical Engineering
Faculty of Natural Sciences



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