The Secretary of State for Defence

Alessandro Enzo Contini

Peter Golding

Anthony John Bellamy

Eleftheria Dossi

David Mearns Duncan

Optically sensitized binders which are energetic polyphosphazenes tailored at the molecular level to achieve enhanced absorption of electromagnetic radiation by having attached thereto a chromophore to absorb light and therefore ignite the binder in use.

Polyphosphazenes

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

Alessandro Enzo Contini