1,2,4,5-Cyclohexanetetracarboxylic Dianhydride (CAS 2754-41-8), commonly abbreviated as HPMDA or CHDA, is an important alicyclic dianhydride widely used in the synthesis of high-performance polyimides, polyamide-imides, and other advanced polymer materials. Compared with aromatic dianhydrides, its alicyclic structure provides improved optical transparency, lower dielectric constant, and enhanced processability while maintaining excellent thermal and mechanical properties.
As a key monomer for next-generation polymer materials, 1,2,4,5-Cyclohexanetetracarboxylic Dianhydride is widely utilized in electronics, aerospace, optoelectronics, and high-performance coatings.
Chemical Characteristics
1,2,4,5-Cyclohexanetetracarboxylic Dianhydride typically appears as a white to off-white crystalline powder. It contains two highly reactive anhydride groups that readily react with diamines to produce high-molecular-weight polyimides.
The alicyclic cyclohexane core reduces intermolecular charge-transfer interactions found in conventional aromatic polyimides, resulting in polymers with superior optical clarity and colorlessness.
Applications
Polyimide Manufacturing
The compound is widely used as a dianhydride monomer for producing transparent polyimide films with excellent heat resistance, dimensional stability, and mechanical strength.
Electronic Materials
Transparent polyimides prepared from this monomer are used in flexible printed circuits (FPCs), flexible displays, OLED substrates, semiconductor packaging, and insulating materials requiring high thermal stability and low dielectric properties.
Optoelectronic Applications
Its low coloration and excellent optical transparency make it suitable for optical films, flexible touch panels, foldable electronic devices, and display technologies.
High-Performance Coatings and Composites
The compound is also employed in heat-resistant coatings, adhesives, composite matrices, and aerospace materials where durability and thermal performance are critical.
Supply Information
UCHEM supplies 1,2,4,5-Cyclohexanetetracarboxylic Dianhydride (CAS 2754-41-8) with high purity and reliable quality. The product is suitable for laboratory research, pilot-scale development, and commercial manufacturing of high-performance polymer materials.
