High-Purity BPADA Electronic Grade for 5G FCCL and OLED Substrates
URL: /bpada-electronic-grade-5g-fccl-oled
Product Summary
4,4'-(4,4'-Isopropylidenediphenoxy)bis(phthalic anhydride) (BPADA) is a high-purity diphthalic anhydride monomer with a bisphenol A core. It is a key building block for high-performance polyimide (PI) films with high optical transparency and glass transition temperature (Tg = 207 °C). This electronic grade is designed for 5G high-frequency and high-speed flexible copper-clad laminate (FCCL), OLED flexible substrate, and aerospace lightweight composite applications. It is produced under strict quality control to ensure ppb-level metal impurities and consistent batch-to-batch performance.
Key Selling Points
- High Tg (207°C): Enables dimensionally stable PI films for flexible display substrates, ensuring reliability under thermal stress.
- High optical transparency: Incompletely conjugated structure results in transparent films essential for OLED flexible substrates.
- ppb-level purity (electronic grade): Supports advanced semiconductor and display manufacturing with minimal metal contamination.
- Application-specific performance: Ideal for 5G FCCL, OLED substrates, and aerospace composites requiring high heat resistance and chemical inertness.
Technical Specifications
| Parameter | Value |
|---|
| CAS | 38103-06-9 |
| Molecular Formula | C31H20O8 |
| Molecular Weight | 520.49 |
| EINECS | 253-781-7 |
| Melting Point | 184-187 °C |
| Boiling Point | 712.3±60.0 °C |
| Density | 1.406±0.06 g/cm³ |
| Vapor Pressure | 0 Pa at 25 °C |
| Form | Powder to crystal |
| Color | White to light yellow |
Models and Options
Available in standard electronic grade, custom purity grades (e.g., higher purity for advanced node processes), and custom packaging options. Contact us for specific requirements.
Materials and Structure
BPADA features a bisphenol A core linked to two phthalic anhydride groups. This diphthalic anhydride structure provides the rigidity and thermal stability required for high-performance PI materials. The anhydride groups are reactive and must be handled in dry, sealed environments to prevent hydrolysis.
Applications
- High-performance polyimide (PI) synthesis
- 5G high-frequency and high-speed FCCL
- OLED flexible substrates
- Aerospace lightweight composite materials
- Fuel cell ion transport membranes
- Superhydrophobic aerogels (Lotus effect)
Customization
We offer customization of purity level, particle size, packaging (e.g., 1kg, 25kg, drum), and can adapt to specific supply chain requirements. We also provide CDMO services for process development and scale-up.
Case Study
Our high-purity electronic chemicals have supported leading semiconductor material companies. For example, a photoresist formulation developer achieved metal impurities <10 ppb, meeting SEMI Grade 4 standards, and passed verification by a top-tier Korean wafer fab. This demonstrates our capability to supply electronic-grade monomers for demanding applications.
FAQ
What is the typical purity of your electronic grade BPADA?
We offer electronic grade with ppb-level metal impurity control. Specific purity can be customized to meet your process requirements.
What is the MOQ for electronic grade?
MOQ is 1 kg for samples, with scale-up quantities available.
How should BPADA be stored?
Store in a dry, sealed environment under inert gas (e.g., nitrogen) to prevent moisture ingress, as it is moisture-sensitive.
What is the glass transition temperature of PI films made from your BPADA?
The high Tg of 207 °C enables dimensional stability for flexible substrates.
Can you provide custom purity or packaging?
Yes, we offer customization options and CDMO services.
Inquiry Information
For pricing, samples, or technical consultations, contact our team: Email: sales@jumingchem.com | Phone/WhatsApp: +86 159 6162 4309
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