Used as a monomer in the synthesis of high-performance polycarbonates, this compound contributes to the production of transparent, heat-resistant, and impact-modified engineering plastics. It is particularly valuable in creating specialty polymers with enhanced glass transition temperatures, making them suitable for applications in electronics, aerospace, and optical materials. Its bulky tert-butyl groups help reduce chain packing in the polymer matrix, improving solubility and processability while maintaining thermal stability. It is also employed in controlled polymer architectures such as block or graft copolymers for advanced material design.