α-BPDA (CAS 36978-41-3) Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
α-Biphenyltetracarboxylic Dianhydride (α-BPDA) (CAS 36978-41-3) is a high-purity aromatic dianhydride monomer essential for producing advanced polyimide materials. This specialty chemical offers superior thermal stability compared to conventional dianhydrides.
Key Parameters:
| Parameter | α-BPDA | Standard BPDA |
|---|---|---|
| Molecular Weight | 344.3 g/mol | 344.3 g/mol |
| Melting Point | 295-298°C | 285-290°C |
| Thermal Decomposition | ＞550°C | 500-520°C |
2. Key Applications & Use Cases
Core Applications:
- High-temperature polyimide films
- Aerospace composite matrices
- Semiconductor dielectric layers
- Flexible printed circuit substrates
Operational Advantages:
- Enables continuous operation at 400°C+ environments
- Reduces coefficient of thermal expansion by 25-30%
- Enhances mechanical strength at extreme temperatures
3. Performance Comparison Chart
| Property | α-BPDA Polymer | PMDA Polymer | BTDA Polymer |
|---|---|---|---|
| Glass Transition Temp | 385°C | 360°C | 340°C |
| Tensile Strength (RT) | 320 MPa | 280 MPa | 250 MPa |
4. Industry Implementation Examples
Case 1: Aerospace Engine Components
Challenge: Develop turbine blade coatings resistant to 600°C exhaust gases
Solution: α-BPDA-based polyimide composite showed 2,200hr durability at 575°C
Case 2: Flexible Displays
Challenge: Create foldable substrate surviving 200,000 bends
Result: α-BPDA film maintained 98% conductivity after stress testing
5. Client Success Stories
AvionTech Systems
Project: Satellite radiation shielding membranes
Outcome: 40% weight reduction while maintaining NASA TPS-8700 compliance
NanoElectronix Co.
Application: 5G mmWave antenna substrates
Performance: Achieved Dk=2.8 with 0.002 dissipation factor at 28GHz
6. Technical Consultation
Request Customized Solutions:
Contact our polymer specialists for technical support:
info@vivalr.com
(86) 15866781826
Enhanced Services:
- Material compatibility testing
- Regulatory compliance guidance
- Custom synthesis protocols
Technical FAQs
Q: Solvent compatibility for α-BPDA processing?
A: Recommended solvents include NMP/DMAc with 5-7% solids content
Q: Shelf life under standard storage?
A: 24 months in sealed containers below 25°C (40% RH)
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