Product Name: 1,2,3,4-Cyclobutanetetracarboxylic Dianhydride (CBDA)
CAS No.: 4415-87-6
Molecular Formula: C₈H₄O₆
Molecular Weight: 196.11 g/mol
Overview:
1,2,3,4-Cyclobutanetetracarboxylic Dianhydride (CBDA) is a highly symmetrical, rigid cyclobutane-based tetrafunctional aromatic dianhydride monomer. Its unique alicyclic structure effectively disrupts polymer chain conjugation and charge transfer complex formation, fundamentally addressing the issues of deep coloration and poor processability in traditional polyimides. While imparting excellent thermal stability and mechanical strength, this structure significantly enhances the material's optical transparency, solubility, and processability, making it a core strategic raw material for synthesizing the new generation of high-performance, multifunctional polyimides.
Key Advantages:
99% Ultra-High Purity Guarantee: Utilizing patented distillation and gradient crystallization technologies, we guarantee a consistent product purity of ≥99%, with high anhydride content and extremely low levels of free acid and organic impurities. This ensures consistent polymerization reactivity and is the cornerstone for the reliable synthesis of high-molecular-weight, high-performance polyimide materials.
Creator of Key Properties: The alicyclic structure of CBDA is the core of its value. It is not only critical for reducing material coloration but also enables the co-regulation of polyimide dielectric constant, coefficient of thermal expansion, water absorption, and optical properties, facilitating the development of specialty materials that meet cutting-edge application requirements.
Stable Production & Reliable Supply: With automated and continuous production lines in our own facility, we ensure stable year-round production and offer flexible supply capabilities from kilogram to ton scale, securing the entire supply chain for our customers from R&D and pilot-scale to commercial production.
Dual Advantage in Cost & Technology: Leveraging China's complete chemical industry chain and optimized production processes, we provide significant cost advantages compared to imported high-end monomers. Our dedicated technical team offers comprehensive support, from monomer selection to material application.
Physicochemical Properties:
Appearance: White to off-white crystalline powder.
Purity: ≥99.0% (HPLC).
Melting Point: >300°C (typically decomposes/sublimes around 320-330°C).
Solubility: Soluble in polar aprotic solvents like N-Methyl-2-pyrrolidone (NMP), N,N-Dimethylformamide (DMF), and Dimethyl sulfoxide (DMSO), often requiring heating for dissolution.
Metal Ion Content: Sodium (Na⁺) ≤5 ppm, Iron (Fe³⁺) ≤1 ppm, Total other metal ions ≤10 ppm.
Primary Applications:
Flexible Displays & Electronics: As a core monomer for manufacturing colorless transparent polyimide (CPI) films, a key substrate and cover window material for foldable smartphones and flexible OLED displays. Also used to produce low dielectric constant (low-k), low CTE materials for electronic packaging and high-performance flexible copper clad laminates.
Advanced Optoelectronic Devices: For synthesizing optical-grade polyimides with high transparency and thermal stability, used as flexible solar cell substrates, optical waveguides, liquid crystal alignment layers, and high-temperature resistant optical films.
Aerospace & Special Protection: Manufacturing lightweight, high-strength, extreme-temperature-resistant composite materials and coatings for aircraft components, satellite materials, and special protective equipment.
High-End Separation Membranes & New Energy: Utilizing its rigid structure to fabricate highly selective gas separation membranes; applied as high-temperature-resistant binders or coating components in areas such as lithium battery separators.
Packaging & Storage:
Packaging: Available in vacuum-sealed aluminum foil bags (100g, 500g, 1kg) or moisture-proof sealed drums (5kg, 25kg). Custom packaging is available upon request.
Storage: Extremely moisture-sensitive – hydrolyzes upon contact with water. Must be stored sealed in a cool, dry, inert atmosphere, recommended relative humidity ≤20%. After opening, use promptly in a dry environment and reseal tightly.
We welcome inquiries and collaboration from partners in flexible electronics, semiconductor packaging, specialty polymer materials, and advanced R&D! We provide samples, technical data, and customized solutions.
Yurui(Shanghai) Chemical Co. Ltd / UIV Chem
Contact Person: Nan Haodong
Address: Floor 5, Building H2, No.3188 Xiupu Rd, Pudong, Shanghai 201203, China
Tel: 0086-21-50456736 / 021-33191321
WhatsApp: +86 17613296318
WeChat: NHDong2021
Email: xin@riyngroup.com
QQ: 2551819264
Website: www.riyngroup.com
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