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Poly High Internal Phase Emulsion for the Immobilization of Chemical Warfare Agents

Wright, Alexander J., Main, Marcus J., Cooper, Nicholas J., Blight, Barry A., Holder, Simon J. (2017) Poly High Internal Phase Emulsion for the Immobilization of Chemical Warfare Agents. ACS Applied Materials & Interfaces, 9 (37). pp. 31335-31339. ISSN 1944-8244. E-ISSN 1944-8252. (doi:10.1021/acsami.7b09188) (KAR id:64165)


We report a facile method for the absorption (characterized by the weight/weight swelling degree, Q) of a variety of chemical warfare agents (CWAs); including sulfur mustard (HD) (Q = 40) and V-series (VM, VX, i-Bu-VX, n-Bu-VX) of nerve agents (Q ? 45) and a simulant, methyl benzoate (Q = 55), through the use of a poly(styrene-co-vinyl benzyl chloride-co-divinylbenzene) lightly cross-linked poly high internal phase emulsion (polyHIPE). By varying the vinyl benzyl chloride (VBC) content and the volume of the internal phase of the precursor emulsion it is demonstrated that absorption is facilitated both by the swelling of the polymer and the uptake of liquid in the pores. In particular the sample prepared from a 95% internal emulsion water content showed rapid swelling (<5 min to total absorption) and the ability to swell both from a monolithic state and from a compressed state, making these systems ideal practical candidates for the rapid immobilization of CWAs.

Item Type: Article
DOI/Identification number: 10.1021/acsami.7b09188
Projects: The Synthesis and Characterisation of Styrene-based Reactive Super Polymeric Absorbents for the Degradation of Organophosphorous Derivatives
Uncontrolled keywords: absorbent; chemical warfare agents; HD; polyHIPE; polystyrene; porosity; VX
Subjects: Q Science > QD Chemistry
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Funders: [37325] UNSPECIFIED
Depositing User: Simon Holder
Date Deposited: 30 Oct 2017 12:25 UTC
Last Modified: 04 Mar 2024 19:48 UTC
Resource URI: (The current URI for this page, for reference purposes)

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