1,3-Bis(4-aminophenoxy)benzene (TPE-R) CAS 2479-46-1

Name: 1,3-Bis(4-aminophenoxy)benzene (TPE-R) CAS 2479-46-1
Brand: Aure Chemical
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Synonyms: 4,4'-(m-Phenylenedioxy)dianiline; 4,4'-[1,3-Phenylenebis(oxy)]dianiline; Resorcinol Bis(4-aminophenyl) Ether; m-Bis(p-aminophenoxy)benzene; 1,3-Bis(p-aminophenoxy)benzene; 1,3-Phenylene bis(p-aminophenyl) ether; 

Shandong Aure Chemical Co., Ltd. is one of the leading suppliers of TPE-R in China and also one of the manufacturers of this product.

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Product Details

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1,3-Bis(4-aminophenoxy)benzene (TPE-R), CAS 2479-46-1, is an aromatic diamine monomer with a phenyl ether core and flexible linkages, enabling the synthesis of high-performance polymers like polyimides with excellent thermal stability, mechanical strength, processability, and flame retardancy.

Basic Information of TPE-R

Product Name	1,3-Bis(4-aminophenoxy)benzene
Abbreviation	TPE-R
CAS Number	2479-46-1
Molecular Formula	C18H16N2O2
Molecular Weight	292.33 g/mol
Appearance	White to brown powder to crystal
Purity	≥99%
Package	1kg/bottle, 20kg/drum, or customized
Molecular formula

Key Properties

Reasonable thermal stability for aromatic diamines
Rigidity from aromatic phenoxy linkages
Dual amine groups suitable for polymerization / crosslinking
Good compatibility with dianhydrides / comonomers
Moderate processability in suitable solvents

Key Applications of TPE-R

High-Performance Polymers: Serves as a diamine monomer for synthesizing semicrystalline polyimides (e.g., with BPDA or PMDA) and copolymers, offering melt-processability and high-temperature resistance for aerospace composites, structural adhesives, and engineering plastics in military and industrial sectors.

Electronics and Electrical Insulation: Utilized in polyimide films, resins, and composites for microelectronics, 5G devices, smartphones, and electromagnetic shielding (e.g., with titanate nanotubes), providing low dielectric constants and high thermal resistance.

Fuel Cell Membranes: Copolymerized with monomers like PEG to produce membranes with high proton conductivity (up to 210 mS/cm) and thermal stability (up to 140°C), suitable for polymer electrolyte fuel cells.

Sensors and Coordination Compounds: Acts as a ligand in metal-organic complexes (0D, 1D, 2D) for sensing nitroaromatic compounds; also used in siloxane-organic networks for advanced materials.

Other Industrial Uses: Employed as a curing/crosslinking agent in epoxy resins, powder coating matting agents, PVC plasticizers, and in supramolecular chemistry for thiourea derivatives and hydrogen-bonded assemblies; potential in pharmaceuticals and dyes.

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Packaging, Logistics & Compliance Capabilities

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