9,9-Bis[4-phenyl]fluorene
9,9-Bis[4-phenyl]fluorene (CAS: 117344-32-8), specifically 9,9-bis(4-hydroxyphenyl)fluorene, is a rigid bisphenol featuring the tricyclic fluorene core flanked by two phenolic groups. This structurally unique diol serves as a premium monomer for high-performance polycarbonates, polyesters, and epoxy resins where its bulky, cardo-type structure imparts exceptional thermal stability, high glass transition temperatures, and outstanding optical properties. The fluorene moiety’s rigidity prevents chain packing, enhancing solubility and processability while maintaining mechanical strength. It is employed in optical films, display substrates, semiconductor encapsulation materials, and specialty membranes requiring low birefringence and high heat resistance. The compound also functions as an intermediate for functional materials and as a molecular scaffold in host materials for OLED applications. With its superior thermal and optical characteristics, this bisphenol enables next-generation polymer materials for electronics and aerospace.
– High-Performance Polycarbonates: Used as the bisphenol monomer producing heat-resistant polycarbonates with high glass transition temperatures for electronic and automotive applications.
– Optical Materials: Serves as a building block for optical films, lens materials, and display substrates requiring low birefringence and transparency.
– Epoxy and Polyester Resins: Applied in synthesizing high-Tg thermosets for semiconductor encapsulation, aerospace composites, and specialty adhesives.
– OLED and Electronic Applications: Employed in preparing host materials, hole-transport layers, and functional polymers for optoelectronic devices.
Product Name: 9,9-Bis[4-phenyl]fluorene
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