9,9-Bis(3-fluoro-4-aminophenyl)fluorene (FFDA)

Basic Information of FFDA

Product Name	9,9-Bis(3-fluoro-4-aminophenyl)fluorene
Abbreviation	FFDA
CAS Number	127926-65-2
Product Type	Fluorinated fluorene-based aromatic diamine monomer
Molecular Formula	C25H18F2N2
Molecular Weight	384.42 g/mol
Appearance	White to almost white powder or crystal
Purity	≥ 99.5%; final batch data should be confirmed by latest COA
Main Application	Fluorinated, optical, low-dielectric and high-performance polyimide synthesis
Package	1 kg/bottle, 20 kg/drum, or customized packaging
Documents	COA, SDS and TDS available upon request
Molecular Structure

Typical Specification of FFDA

The above information is provided as a typical specification reference for FFDA CAS 127926-65-2. Final batch data, purity, appearance and documentation should be confirmed by the latest COA before order confirmation.

Key Features in Polyimide Design

• Fluorinated aromatic diamine structure, relevant to fluorinated polyimide diamine applications.

• Rigid fluorene core may support thermal resistance, chain rigidity and dimensional stability depending on the paired dianhydride and polymer architecture.

• Fluoro-substituted aromatic structure may be considered when dielectric behavior, optical performance and moisture-related properties are part of the target PI design.

• FFDA can be evaluated in optical and transparent polyimide applications where reduced coloration and material clarity are design considerations.

• Final material properties depend on monomer purity, dianhydride selection, solvent system, imidization conditions and polymer processing method.

Pairing FFDA with Dianhydride Monomers

In polyimide synthesis, FFDA may be evaluated with selected polyimide dianhydride monomers to design fluorinated, rigid and high-performance PI systems. Fluorinated dianhydrides such as 6FDA CAS 1107-00-2 may be considered when optical, dielectric or moisture-related properties are important.

Rigid aromatic dianhydrides such as BPDA CAS 2420-87-3 or BTDA CAS 2421-28-5 may support thermal resistance and dimensional stability, while ether-containing dianhydrides such as ODPA CAS 1823-59-2 may help improve processability and film-forming behavior.

Application Context of FFDA in Polyimide Systems

FFDA is typically used as a structural diamine monomer rather than a finished application material. It is commonly discussed in fluorinated, optical, dielectric and high-temperature polyimide material development, where fluorene rigidity and fluoro-substituted aromatic structures can influence polymer performance.

• Fluorinated polyimide diamine applications – monomer selection for fluorinated PI systems.

• Optical and transparent polyimide applications – optical clarity and reduced coloration in PI design.

• Electronics and semiconductor polyimide applications – low-dielectric, insulation and electronic material requirements.

• High-temperature polyimide applications – thermal resistance and high-performance polymer environments.

• Specialty functional polyimide development – fluorinated and rigid diamine selection for advanced polymer research.

Related Polyimide Monomer Supply Guides

For a broader technical overview of both diamine and dianhydride monomer families, please review Polyimide Monomers: Diamines and Dianhydrides.

Related Polyimide Monomers

• TFMB / TFDB CAS 341-58-2 – fluorinated diamine for transparent, low-dielectric and high-performance PI systems.

• 6FDA CAS 1107-00-2 – fluorinated dianhydride often considered in transparent and low-dielectric PI systems.

• 6FODA CAS 344-48-9 – fluorinated ether diamine for flexible, processable and low-dielectric PI material design.

COA, SDS and Technical Documentation

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