Material produced from the proof of concept demonstration (25-50 gram scale) will be sent to the Army for further characterization to ensure results are consistent and meet expectations. Complete feasibility studies at the laboratory scale will focus on the polymerization process: chemical process steps, isolation of product, and waste stream processing with particular emphasis on safety and throughput. Other testing may be performed to determine specific safety properties and other performance or structural characteristics of interest. Additional characterization tests will be performed including, thermal analysis, gel permeation chromatography (GPC), dynamic mechanical analysis (DMA), melt viscosity, Teflon adhesion test, and nuclear magnetic resonance (NMR). Perform analysis of rheological and physical properties of the BAMO-AMMO materials at various temperature, humidity and treatments. Study the material residue after burning of the selected BAMO-AMMO batch materials. Material from each small batch will be further characterized to compare properties with legacy material. PHASE I: Develop and demonstrate lab-scale synthesis method (~25-50gms per batch) using novel processing concepts to produce BAMO-AMMO material. The focus of this SBIR project shall include multidisciplinary research and development effort focusing on a robust, scalable and affordable manufacturing process for BAMO-AMMO and its precursors using modern technologies. The polymerization reactions need excessive amounts of reaction time (up to 96 hours) and extensive workup and isolation. However, the current manufacturing processes for BAMO-AMMO prevent the ETPE from being affordable or manufactured with high throughput. Significant efforts have been performed in developing BAMO-AMMO such as tailoring the вЂњsoftвЂќ AMMO and вЂњhardвЂќ BAMO blocks of the copolymer to tailor the final mechanical properties.

BAMO-AMMO, one of the ETPE material, an energetic block copolymer, offers desirable performance, good mechanical properties, high energy, is clean burning, and is chemically compatible with a wide range of materials such as nitramines. ETPEs have been shown to have promising key properties such as good flame temperature, stability and performance. The specific properties of a given ETPEs is controlled by a number of factors including characteristics of the building block molecules and linking agents, average polymer molecular weight, and distribution of molecular weights. These materials are formed by linking two or more polymeric building blocks, one of which is typically crystalline in nature and one of which is amorphous, into a single polymer chain. One of the methods to increase overall performance of a propulsion system is the use of high energy thermoplastic elastomers (ETPEs). OBJECTIVE: Develop safe, novel, and cost-effective processes for the commercial manufacture of energetic polymers (BAMO-AMMO) suitable for formulating advanced, high-performance materials.ДESCRIPTION: To achieve the goal of extending the range of current and future precision fire munitions for the US ArmyвЂ™s mission of performance overmatch, materials with energy greater than currently available are necessary. Offerors are advised foreign nationals proposed to perform on this topic may be restricted due to the technical data under US Export Control Laws. Offerors must disclose any proposed use of foreign nationals (FNs), their country(ies) of origin, the type of visa or work permit possessed, and the statement of work (SOW) tasks intended for accomplishment by the FN(s) in accordance with section 3.5 of the Announcement. The technology within this topic is restricted under the International Traffic in Arms Regulation (ITAR), 22 CFR Parts 120-130, which controls the export and import of defense-related material and services, including export of sensitive technical data, or the Export Administration Regulation (EAR), 15 CFR Parts 730-774, which controls dual use items.

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