Synthesis and physicochemical investigation of imide‐functionalized silica nanocomposites

Abstract

The incorporation of inorganic nanoparticles into polymers have gained significant attention to improving functional properties. The ultimate nanocomposite behaviors are influenced by many parameters, such as microstructural distribution that are produced during the treatment process. Herein, a hybrid material integrating a modified network into a polyimide PI matrix was produced via the sol-gel method by the reaction of pyromellitic dianhydride, 4, 4-oxydianaline,

Structural, optical, dielectric, and surface properties of polyimide hybrid nanocomposites films embedded mesoporous silica nanoparticles synthesized from rice husk ash for optoelectronic applications

“…The sol-gel method has been used to prepare many hybrid polyimide systems, which have nanostructured morphology. Moreover, these nanostructured systems are produced by introducing coupling agents in the precursor solution to generate high adhesion between the polymeric matrix and silica filler (Zhao et al 2015;Müller et al 2017;Ali et al 2021). Consequently, at higher temperature ranges, the polyimides nanocomposites manifested better mechanical properties than micron-composites (Fu et al 2019(Fu et al , 2008Cho et al 2006).…”

Enhanced mechanical and tribological properties of epoxy‐based coatings by in‐situ synthesized silicon dioxide nanoparticles

“…31,32 The inorganic nanoparticles in the composite coatings are derived from the hydrolysis of silicon derivatives, which can promote the interaction between organic and inorganic components, 33 and reinforce the interface compatibility between the fillers and binders. In addition, the introduction of silane coupling agents can endow the inorganic nanoparticles with some functional groups, 34 which can covalently graft onto the polymer matrix. This unique molecular structure can improve the shear strength and bonding strength of the coating, 35 and effectively protect the substrate from corrosion.…”