Property | Value |
Synonyms | 4,4'-(Hexafluoroisopropylidene)dibenzoic acid; 2,2-Bis(4-carboxyphenyl)-1,1,1,3,3,3-hexafluoropropane |
Molecular Formula | C₁₇H₁₀F₆O₄ |
Molecular Weight | 392.25 g/mol |
Appearance | White to almost white powder to crystal |
Physical State | Solid |
Melting Point | 272–275 °C (lit.) |
Boiling Point | 424.4 ± 45.0 °C (Predicted) |
Density | 1.505 ± 0.06 g/cm³ (Predicted) |
pKa | 3.45 ± 0.10 (Predicted) |
Description of 2,2-Bis(4-Carboxyphenyl)Hexafluoropropane
2,2-Bis(4-carboxyphenyl)hexafluoropropane (CAS: 1171-47-7), also known as 4,4'-(hexafluoroisopropylidene)dibenzoic acid or 6F-Diacid, is a fluorinated aromatic dicarboxylic acid. This specialty monomer is widely used in the synthesis of high-performance fluorinated polyimides, polyamides, and polyesters.
Application of 2,2-Bis(4-Carboxyphenyl)Hexafluoropropane
Fluorinated Polyimide Monomer. Key diacid monomer for synthesizing high-performance polyimides with low dielectric constant, high thermal stability (Tg >300°C), and excellent mechanical properties.
Polyester and Polyamide Synthesis. Used to produce fluorinated polyesters and polyamides with superior chemical resistance, low moisture absorption, and transparency for advanced engineering plastics.
Flexible Display and Electronics. Enables low-CTE, high-transparency polyimide films ideal for flexible OLED/AMOLED substrates, cover layers, and foldable device components.
Optical and Photonic Materials. Incorporated into polymers for low-loss optical waveguides, lenses, and anti-reflective coatings due to high optical clarity and low refractive index.
Aerospace and Microelectronics Coatings. Applied in protective coatings, interlayer dielectrics, and composites requiring exceptional thermal, chemical, and radiation resistance in harsh environments.
Storage of 2,2-Bis(4-Carboxyphenyl)Hexafluoropropane
It should be kept in a tightly sealed original container in a cool, dry, well-ventilated area away from direct sunlight, heat, and moisture. Recommended storage temperature: 5–25°C (room temperature). Keep away from strong oxidizing agents, bases, and incompatible materials to prevent degradation or reactions. Avoid prolonged exposure to air or humidity, as carboxylic acids may absorb moisture.
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