ABSTRACT
344Cyanate esters (CEs) are currently in widespread use because of their high thermal stability, excellent mechanical properties, good flame resistance, low outgassing, and good radiation resistance. Applications of CE resins include structural aerospace, electronic, microwave-transparent composites, encapsulant, and as an adhesives. High-speed electronic device circuits require low-k material to realize the faster signal transmission without crosstalk. To achieve this, it is important to develop the low-k dielectric materials that are needed for the efficient integrated circuits. It is well established that the low-k silica and other related materials can prevent the signal crossover with low-power consumption. In this view, many efforts have been taken to reduce the dielectric constant (<1.8) with different kind of materials. Especially, nanolevel porous inorganic materials, variety of polymeric materials and their combinations are investigated for low-k dielectrics. Hence, in the present chapter, development of organic–inorganic hybrid polymer nanocomposites based on CEs hybridizing with porous nano reinforcement like POSS, Mesoporous SBA-15, and silica under appropriate conditions to yield low dielectric constant is discussed. In addition, the thermal and morphological properties of the nanocomposites are discussed to ascertain their high-performance characteristics.
