2,2′-Bis(4-aminophenoxyphenyl)propane (BAPP)

Basic Information of BAPP

Product Name	2,2'-Bis(4-aminophenoxyphenyl)propane
Abbreviation	BAPP
CAS Number	13080-86-9
Product Type	Ether-containing aromatic diamine monomer
Molecular Formula	C27H26N2O2
Molecular Weight	410.51 g/mol
Appearance	White to off-white solid, powder or particulate
Purity	≥ 99.5%; batch data should be confirmed when COA is available
Main Application	Flexible, processable and heat-resistant 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.

• Phenoxy linkages may help improve chain mobility, solubility and film-forming behavior depending on the paired dianhydride and polymer architecture.

• Aromatic backbone may support thermal resistance and mechanical performance in selected high-performance polymer systems.

• BAPP 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 BAPP with Dianhydride Monomers

In polyimide synthesis, BAPP may be evaluated with selected polyimide dianhydride monomers to design flexible, processable and heat-resistant 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 BAPP in Polyimide Systems

BAPP is typically used as a structural diamine monomer rather than a finished application material. It is commonly discussed in flexible, processable, heat-resistant and specialty polyimide material development, where aromatic structure and phenoxy linkages can influence solubility, polymer morphology and processing behavior.

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

• Specialty functional polyimide materials – ether-containing diamine selection for advanced polymer research.

• Electronics and semiconductor polyimide applications – insulation, dielectric behavior 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

• 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.

• TFMB / TFDB CAS 341-58-2 – fluorinated diamine for transparent, low-dielectric and high-performance PI systems.

SDS, TDS and Technical Documentation

Please share the required purity, target specification, quantity, destination country or port, preferred packaging method and required documents so we can review availability, documentation support and export packing options.