SBIR Phase I: Polysiloxane-Polyimides for Low Temperature Curable Polymer Matrix Materials

小企业创新研究（SBIR）第一阶段项目致力于合成新型聚硅氧烷-聚酰亚胺共聚物，用于耐高温聚合物基体材料。第一阶段将开发新的高度可用的合成方法，用于生产由交联聚硅氧烷-聚酰亚胺段组成的无机-有机杂化材料。交联或固化（硅氢化）反应可以在室温下进行，从而为开发一种非高压釜或低温固化系统提供了机会，类似于在硅工业中广泛使用的成熟的室温硫化过程。在第二阶段，预期的高性能聚合物材料将作为低温制备聚合物基复合材料（PMC）的基体材料。在第二阶段，聚合物配方将被优化，独特的PMC组件将采用专有的低成本树脂传递成型技术制造。商业应用有望在低温固化/耐高温固化就地材料。潜在的应用领域包括汽车零部件、航空、微电子、复合材料、建筑材料和其他行业，在这些行业中，突出的热、化学（溶剂和抗氧化）、物理和机械性能是很重要的。

The Small Business Innovation Research (SBIR) Phase I project addresses the synthesis of new polysiloxane-polyimide co-polymers for use as high-temperature resistant polymeric matrix materials. Phase I will develop new highly usable synthetic methodologies for the production of inorganic-organic hybrid materials composed of cross-linked polysiloxane-polyimide segments. The cross-linking or curing (hydrosilylation) reaction may be conducted at room temperature, thus providing the opportunity to develop a non-autoclave or low-temperature curing system, similar to the well-established room temperature vulcanization process widely used in the silicone industry. The expected high-performance polymeric materials would be employed in Phase II as matrix materials for low-temperature fabrication of polymeric matrix composites (PMC). In Phase II polymer formulation will be optimized, and distinctive PMC components will be fabricated by employing proprietary low-cost resin transfer molding technologies.Commercial applications are expected in low-temperature curable/high-temperature resistant cure-in-place materials. Potential fields of application include automotive components, aeronautics, microelectronics, composites, construction materials, and other industries where outstanding thermal, chemical (solvents and oxidation resistance), physical, and mechanical properties are important.