AB-TFMB CAS 1449757-11-2

Synonyms: N,N'-(2,2'-bis(trifluoromethyl)-[1,1'- biphenyl]-4,4'-diyl)bis(4-aminobenzamide)

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Product Details

High-Purity AB-TFMB from Aure Chemical – Your Trusted Source

N,N'-(2,2'-Bis(trifluoromethyl)-[1,1'-biphenyl]-4,4'-diyl)bis(4-aminobenzamide) (AB-TFMB), CAS 1449757-11-2, is a fluorinated diamine monomer featuring a rigid biphenyl core with trifluoromethyl groups and amide linkages. These attributes enable the synthesis of advanced polyimides with high transparency, low linear coefficient of thermal expansion (CTE, e.g., 4.2 ppm/K), enhanced thermal stability, and improved gas permeability (e.g., oxygen transmission up to 2313 cm³/m²/day). It is supplied as a high-purity white powder (>99%) for commercial-scale production.

Basic Information of AB-TFMB

Product Name	N,N'-(2,2'-bis(trifluoromethyl)-[1,1'- biphenyl]-4,4'-diyl)bis(4-aminobenzamide)
Abbreviation	AB-TFMB
CAS Number	1449757-11-2
Molecular Formula	C28H20F6N4O2
Molecular Weight	558.47 g/mol
Appearance	White to almost white powder to crystaline
Purity	≥99%
Package	1kg/bottle, 20kg/drum, or customized
Molecular formula

Key Properties

Fluorinated structure ensures low dielectric constant
Outstanding thermal and oxidative stability
Improved hydrophobicity and chemical resistance
Rigid structure enhances polymer mechanical performance
High compatibility with dianhydrides in polyimide synthesis

Key Applications of AB-TFMB

Polyimide Films (PI Films): Acts as a diamine precursor for synthesizing transparent, low-CTE polyimides used in flexible electronics and displays, where the trifluoromethyl groups reduce intermolecular charge transfer for better optical clarity.

Electronics and Electrical Industries: Serves as an upstream raw material for high-performance polymers in electronic components, leveraging its rigidity and stability for applications requiring thermal and mechanical durability.