Description

4,4-Bismaleimidodiphenylether (44Oda/Bmi) is a high-performance bismaleimide (BMI) monomer, a critical building block for advanced thermosetting polymers. This compound matters for its exceptional thermal stability, mechanical strength, and chemical resistance when polymerized, making it ideal for demanding high-temperature environments. Industries requiring durable, lightweight composites, such as aerospace, electronics, and automotive manufacturing, rely on this material for advanced resin systems and adhesives. Its consistent quality is essential for ensuring the reliability and performance of final engineered components.

Application

• As a key monomer for the synthesis of bismaleimide (BMI) resins used in high-performance composites.
• In the production of printed circuit boards (PCBs) and electronic encapsulants requiring high thermal and dimensional stability.
• As a cross-linking agent and modifier in epoxy resin systems to enhance their thermal and mechanical properties.
• For manufacturing high-temperature structural adhesives and bonding pastes in aerospace and automotive applications.
• In the formulation of advanced composite materials for aircraft interiors, radomes, and engine components.
• As a precursor for polyimide films and coatings with excellent dielectric properties.
• Used in research and development of next-generation thermoset polymers for industrial and military applications.

Basic Information

Product Name	4,4-Bismaleimidodiphenylether (44Oda/Bmi)
CAS No.	13132-94-0
Molecular Formula	C22H12N2O5
Molecular Weight	384.35 g/mol
Synonyms	4,4'-Bismaleimidodiphenyl Ether; 1,1'-(Oxybis(4,1-phenylene))bismaleimide; BMI; Bismaleimide Monomer ODA; 4,4'-Bismaleimidodiphenyl Oxide; 4,4'-Oxybis(N-phenylmaleimide); ODA-BMI; 44ODA
EINECS	Contact for details

Quality Control

Our 4,4-Bismaleimidodiphenylether is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay, melting point determination, and impurity profiling. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product remains stable for extended periods.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms
Melting Point	155 - 165 °C
Assay (HPLC)	≥ 98.0 %
Loss on Drying	≤ 0.5 %

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