1,4-Bis(4-aminophenoxy)benzene (TPE-Q)

Basic Information of TPE-Q

Product Name	1,4-Bis(4-aminophenoxy)benzene
Abbreviation	TPE-Q
CAS Number	3491-12-1
Product Type	Ether-containing aromatic diamine monomer
Molecular Formula	C18H16N2O2
Molecular Weight	292.33 g/mol
Appearance	Light yellow to off-white powder; available batch result off-white powder
Purity	≥ 99%; available batch result 99.6% by HPLC
Loss on Drying	≤ 0.5%; available batch result 0.2%
Main Application	Processable, heat-resistant and specialty polyimide synthesis
Package	1 kg/bottle, 20 kg/drum, or customized packaging
Documents	COA, SDS and TDS available upon request
Storage	Sealed container; keep dry; store in a cool and dark place
Molecular Structure

Typical Specification of TPE-Q

The above data is based on an available batch COA for TPE-Q CAS 3491-12-1. Final specifications, batch data and documentation should be confirmed by the latest COA before order confirmation.

Key Features in Polyimide Design

• Ether-containing aromatic diamine structure, relevant to processable and specialty polyimide material design.

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

• Aromatic backbone may support thermal resistance and mechanical performance in selected polyimide systems.

• TPE-Q can be considered in flexible and processable polyimide formulations where solubility, processing and film properties are important.

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

Pairing TPE-Q with Dianhydride Monomers

In polyimide synthesis, TPE-Q may be evaluated with selected polyimide dianhydride monomers to design processable, heat-resistant and specialty PI systems. Rigid aromatic dianhydrides such as BPDA CAS 2420-87-3 or BTDA CAS 2421-28-5 may support thermal resistance and dimensional stability.

Ether-containing dianhydrides such as ODPA CAS 1823-59-2 may further support processability and film-forming behavior, while fluorinated dianhydrides such as 6FDA CAS 1107-00-2 may be considered when optical, dielectric or moisture-related properties are part of the target design.

Application Context of TPE-Q in Polyimide Systems

TPE-Q is typically used as a structural diamine monomer rather than a finished application material. It is commonly discussed in processable, heat-resistant and specialty polyimide material development, where aromatic rigidity and ether-linkage flexibility need to be balanced.

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

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

• Electronics and semiconductor polyimide applications – insulation, dielectric and film-related material requirements.

• Specialty functional polyimide development – aromatic diamine selection for advanced polymer research.

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

• TPE-R CAS 2479-46-1 – ether-containing aromatic diamine for flexible and processable PI material design.

• 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.

COA, SDS and Technical Documentation

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