Description

Bis(4-Maleimidophenyl)Sulfone is a high-performance, heat-resistant bismaleimide monomer. This compound is a critical building block for advanced thermosetting polymers, offering exceptional thermal stability and mechanical properties. It is primarily used by manufacturers in the aerospace, electronics, and high-performance composite industries to produce polyimide resins, adhesives, and matrix materials for demanding applications.

Application

• As a key monomer for the synthesis of high-temperature bismaleimide (BMI) resins and polyimides.
• Production of matrix resins for carbon fiber and glass fiber reinforced composites in aerospace and automotive sectors.
• Formulation of high-performance adhesives and encapsulants for electronics requiring thermal and chemical resistance.
• Manufacture of printed circuit board (PCB) laminates and insulating materials.
• Used in research and development of advanced thermoset polymers for specialized industrial applications.
• As a cross-linking agent for specialty elastomers and coatings.

Basic Information

Product Name	Bis(4-Maleimidophenyl)Sulfone
CAS No.	13102-25-5
Molecular Formula	C22H14N2O6S
Molecular Weight	434.42 g/mol
Synonyms	4,4'-Bismaleimidodiphenyl sulfone; 1,1'-(Sulfonylbis(4,1-phenylene))bis(1H-pyrrole-2,5-dione); Bis(4-maleimidophenyl) sulfone; BMI-S; Bismaleimide sulfone; 4,4'-Diphthalimidodiphenyl sulfone; 4,4'-Bismaleimidodiphenylsulfone; Sulfonyl bismaleimide
EINECS	Contact for details

Quality Control

Our Bis(4-Maleimidophenyl)Sulfone is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent purity and performance, meeting the stringent requirements of advanced polymer applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and physical specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases and reducing agents. For long-term storage, consider an inert atmosphere to maintain optimal quality.

Specification

Item	Specification
Appearance	Light yellow to yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	195 - 205 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.