Swellable functional hypercrosslinked polymer networks for the uptake of chemical warfare agents

Wilson, Craig; Main, Marcus; Cooper, N. John; Briggs, Michael E.; Cooper, Andrew I.; Adams, Dave J.

doi:10.1039/c7py00040e

Cited by 49 publications

(48 citation statements)

References 59 publications

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“…Supramolecular approaches to the mitigation of the hazard posed by chemical warfare agents (CWAs) have attracted recent interest, 1 with chemical sensors, 2,3 catalysts 4,5 and CWAresponsive materials being proposed, [6][7][8] amongst other applications. In the pursuit of recognition strategies for the complexation of chemical warfare agents, and the subsequent transduction of this event to furnish functional materials, there is a need for academic and industrial research groups to use appropriate chemical simulants (also referred to as surrogates or analogues).…”

Section: Introductionmentioning

confidence: 99%

Experimental and computational study of the inclusion complexes of β-cyclodextrin with the chemical warfare agent soman (GD) and commonly used simulants

et al. 2017

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Section: Introductionmentioning

confidence: 99%

Experimental and computational study of the inclusion complexes of β-cyclodextrin with the chemical warfare agent soman (GD) and commonly used simulants

et al. 2017

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“…Further to this, a nonfunctionalised network was synthesised from polystyrene which provides a good comparison between the functionalised and non-functionalised networks. Whilst hypercrosslinked polymers made from poly(styrene), 67 carbazole, 68 BINOL, 20 triphenylamine 69 and fluorobenzene 60 have previously been reported, this is to our knowledge the first reported synthesis of networks synthesised from dibenzyl ether and triphenylmethanol. All networks were obtained in good yields (Table S1) similar to that found for other HCPs.…”

Section: Resultsmentioning

confidence: 80%

A Pressure Swing Approach to Selective CO2 Sequestration Using Functionalised Hypercrosslinked Polymers

James¹,

Reynolds²,

Reed³

et al. 2019

Preprint

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<div> Functionalised hypercrosslinked polymers (HCPs) with surface areas between 213 – 1124 m2/g based on a range of monomers containing different chemical moieties are evaluated for CO2 capture using a pressure swing adsorption (PSA) methodology under humid conditions and elevated temperatures. The networks demonstrated rapid CO2 uptake reaching maximum uptakes in under 60 seconds. The most promising networks demonstrating the best selectivity and highest uptakes were applied to a pressure swing setup using simulated flue gas streams. The carbazole, triphenylmethanol and triphenylamine networks were found to be capable of converting a dilute CO2 stream (> 20 %) into a concentrated stream (> 85 %) after only two pressure swing cycles from 20 bar (adsorption) to 1 bar (desorption). This work demonstrates the ease by which readily synthesised functional porous materials can be successfully applied to a pressure swing methodology and used to separate CO2 from N2 from industrially applicable simulated gas streams under more realistic conditions. </div>

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“…The nitrogen sorption isotherm of HCP‐SC‐IMI at 77.3 K showed less hysteresis than for HCP‐SC due to less inner stress within the network as a result of the fewer crosslinking bridges (Fig. ) . The CO 2 uptake at 0.15 bar and 298 K, increased by around 40%, from 0.26 mmol g −1 in HCP‐SC to 0.36 mmol g −1 in HCP‐SC‐IMI, while the uptake at 1 bar and 298 K was 1.7 mmol g −1 for HCP‐SC‐IMI compared to 1.4 mmol g −1 for HCP‐SC under similar conditions (Tables and ).…”

Section: Resultsmentioning

confidence: 99%

Covalent and electrostatic incorporation of amines into hypercrosslinked polymers for increased CO₂ selectivity

Alahmed

Briggs

Cooper

et al. 2018

J. Polym. Sci. Part A: Polym. Chem.

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Two methods of incorporating functional groups rich in nitrogen into low cost microporous hypercrosslinked polymers (HCPs) have been evaluated and the effects on the carbon dioxide CO2/N2 IAST selectivity were measured. Electrostatic incorporation of an ammonium salt into a sulfonic acid‐containing HCP polymer afforded a static CO2 uptake of 2.5 mmol g−1 with a CO2/N2 IAST selectivity of 42:1 at 1 bar and 298 K. Using column breakthrough measurements with a 15:85 CO2/N2 mixture at 298 K and 1 bar, a selectivity of 17:1 was obtained. However, varying the counterion resulted in polymers with lower CO2/N2 selectivity values. Decoration of the parent polymer with CO2‐philic imidazole followed by electrostatic ammonium salt incorporation blocked some of the micropores reducing the selectivity which re‐emphasizes the role and importance of pore width for CO2/N2 selectivity. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2018, 56, 2513–2521

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Swellable functional hypercrosslinked polymer networks for the uptake of chemical warfare agents

Cited by 49 publications

References 59 publications

Experimental and computational study of the inclusion complexes of β-cyclodextrin with the chemical warfare agent soman (GD) and commonly used simulants

Experimental and computational study of the inclusion complexes of β-cyclodextrin with the chemical warfare agent soman (GD) and commonly used simulants

A Pressure Swing Approach to Selective CO2 Sequestration Using Functionalised Hypercrosslinked Polymers

Covalent and electrostatic incorporation of amines into hypercrosslinked polymers for increased CO₂ selectivity

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Swellable functional hypercrosslinked polymer networks for the uptake of chemical warfare agents

Cited by 49 publications

References 59 publications

Experimental and computational study of the inclusion complexes of β-cyclodextrin with the chemical warfare agent soman (GD) and commonly used simulants

Experimental and computational study of the inclusion complexes of β-cyclodextrin with the chemical warfare agent soman (GD) and commonly used simulants

A Pressure Swing Approach to Selective CO2 Sequestration Using Functionalised Hypercrosslinked Polymers

Covalent and electrostatic incorporation of amines into hypercrosslinked polymers for increased CO2 selectivity

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Covalent and electrostatic incorporation of amines into hypercrosslinked polymers for increased CO₂ selectivity