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

Peter Golding

Anthony John Bellamy

Alessandro Enzo Contini

Helen Claire Hailes

David Mearns Duncan

Eleftheria Dossi

Stephen John Trussell

Martin Eamon Colclough

Javid Hamid

Kason Bala

Valerie Gisele Helene Lafitte

Abil Aliev

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.

This invention describes the synthesis and use of novel energetic poly(phosphazene) materials suitable for binding high explosives. These materials may also be used as explosives in their own right. The materials possess high energy density and are highly amenable to chemical modification thereby allowing for modification to the physical properties of the material. In particular the tacky and rubbery nature of these materials makes them ideal for use as binder and co-binder materials.

Energetic polyphosphazenes

The invention concerns novel cytosine based modules and in particular their application in linear multiple hydrogen bonded arrays to form supramolecular polymers of the formula (II): and the use of these in supramolecular materials. 

Supramolecular polymers

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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Reading, United Kingdom

Peter Golding