The Secretary of State for Defence

The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdon of Great Britain and Northern Ireland

Anthony John Bellamy

Peter Golding

Alessandro Enzo Contini

David Mearns Duncan

Eleftheria Dossi

Alistair J Maccuish

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.

The invention describes the synthesis of novel mono-amine and di-amine derivatives of hexa-nitro-hexaazaisohexawurtzitane (CL-20). The synthesis is affected by the novel use of fluoroacylating compounds to protect the secondary amine groups of acylated precursors to CL-20 against nitrolysis. In so doing the mono-amine and di-amine derivatives of CL-20 are rendered and which in turn may be subsequently utilized as intermediates to generate further novel derivatives with differing physical and chemical properties to the parent compound. Formula (I), wherein: &#x2014;X&#x2550;H, and Y&#x2550;H or NO. 

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Shrivenham, United Kingdom

Anthony John Bellamy