Used as a high-performance crosslinking agent in advanced polymer synthesis, particularly in the preparation of sulfonated poly(arylene ether sulfone) membranes for fuel cell applications. Its bis(triflate) functionality enables efficient nucleophilic aromatic substitution reactions, facilitating the formation of robust covalent bonds between aromatic monomers. This compound is also employed in the synthesis of conjugated microporous polymers and covalent organic frameworks (COFs), where it acts as a rigid, hydrophobic linker that enhances thermal and chemical stability. Due to the electron-withdrawing nature of the trifluoromethanesulfonate groups, it supports palladium-catalyzed coupling reactions, making it valuable in materials science and organic electronics.