Bisphenoxyethanolfluorene (BPEF)

Bisphenoxyethanolfluorene (BPEF) is a high-purity fluorene-based bisphenol monomer widely recognized as a next-generation alternative to Bisphenol A (BPA). Thanks to its unique cardo structure containing a fluorene moiety, BPEF delivers exceptional thermal resistance, mechanical strength, optical transparency, and low birefringence. It is the preferred building block for high-performance engineering polymers used in 5G infrastructure, foldable displays, optical lenses, automotive headlamps, and advanced composite materials.

Technical Specifications

Packaging and Storage

• Net weight 25kg cardboard drum. 

• Store in cool place. Keep container tightly closed in a dry and well-ventilated place.

Key Advantages Over Traditional Bisphenols

• Higher glass transition temperature

• Superior heat resistance

• Excellent optical properties

• Lower dielectric constant and dissipation factor at high frequencies

• Improved solubility in common organic solvents

• Enhanced mechanical toughness and impact resistance

Primary Applications of Bisphenoxyethanolfluorene (BPEF)

High-Performance Polycarbonates:

5G base station radomes, foldable OLED substrates, and optical films.

Polyesters & Polyarylates:

Imparts outstanding heat resistance and transparency for automotive lenses and industrial films.

Epoxy Resins:

High-Tg, low-Dk curing agent for 5G CCL (copper-clad laminates) and semiconductor encapsulation.

Polyurethanes & Thermoplastic Polyurethanes:

Improves elasticity and thermal stability in high-end coatings and adhesives.

Optical Materials:

Low-birefringence lenses, VR/AR waveguides, and camera modules.

Frequently Asked Questions (FAQs)

Q: Is BPEF a direct drop-in replacement for BPA?

A: No. While BPEF can replace BPA in polycarbonate and epoxy applications, polymerization conditions (catalyst, temperature, molar ratio) must be adjusted due to its higher steric hindrance and reactivity differences.

Q: What is the storage of BPEF?

A: When stored in original sealed packaging in a cool, dry place away from light.

Q: Why is BPEF preferred over BPA in high-performance applications?

A: BPEF's rigid cardo fluorene backbone provides dramatically higher Tg, better optical properties, lower birefringence, and improved dielectric performance while being BPA-free.

Q: Is BPEF considered a Bisphenol A alternative?

A: Yes. BPEF is a non-estrogenic, high-performance drop-in replacement for BPA in applications requiring superior heat resistance and optical clarity.

Q: Can BPEF be used in food-contact or medical applications?

A: Many BPEF-derived polymers meet FDA/EFSA food-contact requirements and USP Class VI standards when properly formulated and processed.

Q: Is BPEF soluble in common solvents?

A: Soluble in DMF, DMSO, THF, chloroform, and hot acetone; partially soluble in methanol and ethanol.

Where can I buy high-quality Bisphenoxyethanolfluorene (BPEF)?

You can contact us via Email mandy@aozunchem.com or WhatsApp +86-18452425579 for offers or bulk orders.

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