The Secretary of State for Defence

David Mearns Duncan

Peter Golding

Anthony John Bellamy

Alessandro Enzo Contini

Eleftheria Dossi

Substituted poly(phosphazene) compounds comprising a combination of units having one or more of the structures (i) to (iii) wherein: the combination comprises Rand R; each R, is independently an optionally substituted alkyl- or alkyl ether-based side chain containing an isocyanate-reactive moiety, an epoxide-reactive moiety, an amine-reactive moiety, a supramolecular noncovalent bonding moiety, or combinations thereof; and each Ris independently an optionally substituted alkyl- or alkyl ether-based side chain containing nitro, nitramine, nitrate ester, azide, an ammonium compound moiety with energetic counter-ion, or combinations thereof. Methods of making the compounds are also described.

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Shrivenham, United Kingdom

David Mearns Duncan