Description

3,4-Bismaleimidodiphenylether (34ODA/BMI) is a high-performance bismaleimide monomer, a critical building block for advanced thermosetting polymers. This compound matters for its exceptional thermal stability, mechanical strength, and chemical resistance when polymerized, enabling materials to perform in demanding environments. It is primarily needed by manufacturers in the aerospace, electronics, and advanced composites industries for producing high-temperature adhesives, matrix resins for carbon fiber composites, and encapsulants for microelectronics.

Application

• High-Temperature Composite Matrices: As a cross-linking agent for bismaleimide (BMI) resins used in aerospace and automotive structural components.
• Electronic Encapsulation & Packaging: For manufacturing semiconductor molding compounds and underfill materials that require excellent thermal and dimensional stability.
• Advanced Adhesives & Coatings: Formulation of polyimide-based adhesives and protective coatings for extreme temperature applications.
• Fiber-Reinforced Plastics (FRP): Key monomer in resins for producing high-performance carbon fiber and glass fiber prepregs.
• Fire-Resistant Materials: Contribution to the synthesis of polymers with inherent flame retardancy for transportation and construction.
• Specialty Polyimide Synthesis: Serving as a precursor for various polyimide oligomers and copolymers with tailored properties.

Basic Information

Item	Detail
Product Name	3,4-Bismaleimidodiphenylether (34ODA/BMI)
CAS No.	114816-44-3
Molecular Formula	C22H12N2O5
Molecular Weight	384.35 g/mol
Synonyms	1,1'-(Oxybis(4,1-phenylene))bis(1H-pyrrole-2,5-dione); 3,4'-ODA BMI; Bis(3-maleimidophenyl) Ether; 3,4'-Bismaleimidodiphenyl Ether; 3,4'-Diaminodiphenyl Ether Bismaleimide; BMI Resin Monomer; 34ODA; 4,4'-Oxybis(N-(3-maleimidophenyl)maleimide)
EINECS	Contact for details

Quality Control

Our 3,4-Bismaleimidodiphenylether is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing key parameters such as assay, melting point, and impurity profile are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	Yellow to light brown powder
Identification (IR)	Conforms
Melting Point	155 - 165 °C
Assay (HPLC)	≥ 98.0 %
Loss on Drying	≤ 1.0 %

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