3,4′-Oxydianiline (3,4′-ODA)

Basic Information of 3,4'-ODA

Product Name	3,4'-Oxydianiline
Abbreviation	3,4'-ODA
CAS Number	2657-87-6
Product Type	Ether-containing asymmetric aromatic diamine monomer
Molecular Formula	C12H12N2O
Molecular Weight	200.24 g/mol
Appearance	Off-white solid
Purity	≥ 99%; batch data should be confirmed when COA is available
Main Application	Flexible, processable and specialty polyimide synthesis
Package	1 kg/bottle, 20 kg/drum, or customized packaging
Documents	SDS, TDS and available product information upon request; COA to be confirmed by batch availability
Storage	Keep sealed, dry, and away from moisture
Molecular Structure

Key Features in Polyimide Design

• Ether-containing aromatic diamine structure, relevant to flexible and processable polyimide diamine monomers.

• Asymmetric 3,4'-substitution pattern may help reduce crystallinity and improve solubility depending on the paired dianhydride and polymer architecture.

• Flexible ether linkage may support chain mobility, processability and film-forming behavior in selected polyimide systems.

• 3,4'-ODA can be considered in flexible and processable polyimide systems where solubility, processing and material toughness are important.

• Final material properties depend on monomer purity, dianhydride selection, solvent system, imidization conditions and polymer processing method.

Pairing 3,4'-ODA with Dianhydride Monomers

In polyimide synthesis, 3,4'-ODA may be evaluated with selected polyimide dianhydride monomers to design flexible, processable and specialty PI systems. Ether-containing dianhydrides such as ODPA CAS 1823-59-2 may further support processability and film-forming behavior.

Rigid aromatic dianhydrides such as BPDA CAS 2420-87-3 or BTDA CAS 2421-28-5 may be considered when thermal resistance and dimensional stability are important, while fluorinated dianhydrides such as 6FDA CAS 1107-00-2 may be evaluated when optical, dielectric or moisture-related properties are part of the target polymer design.

Application Context of 3,4'-ODA in Polyimide Systems

3,4'-ODA is typically used as a structural diamine monomer rather than a finished application material. It is commonly discussed in flexible, processable and specialty polyimide material development, where asymmetric aromatic structure and ether linkage can influence solubility, polymer morphology and processing behavior.

• Flexible and processable polyimide systems – solubility, chain flexibility and film formation considerations.

• Specialty functional polyimide materials – asymmetric diamine selection for advanced polymer research.

• Electronics and semiconductor polyimide applications – insulation, film processing and electronic material requirements.

• High-temperature polyimide applications – thermal resistance and high-performance polymer environments.

Related Polyimide Monomer Supply Guides

For a broader technical overview of both diamine and dianhydride monomer families, please review Polyimide Monomers: Diamines and Dianhydrides.

Related Polyimide Monomers

• BAPP CAS 13080-86-9 – ether-containing aromatic diamine for processable and heat-resistant polyimide systems.

• ODPA CAS 1823-59-2 – ether-containing dianhydride for processable and flexible PI systems.

• BPDA CAS 2420-87-3 – rigid aromatic dianhydride for low-CTE and high-temperature PI films.

SDS, TDS and Technical Documentation

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