Used in advanced polymer research due to its unique fluorinated aromatic structure, enabling high thermal and chemical stability. Commonly employed in developing specialty membranes for fuel cells and lithium-ion batteries, where it enhances proton or ion conductivity while maintaining mechanical strength. Also utilized in surface modification to create hydrophobic or oleophobic coatings for electronics and medical devices. Its reactivity allows for post-polymerization functionalization, making it valuable in designing stimuli-responsive materials and precision macromolecular architectures.