2,2'-Bis(trifluoromethyl)-4,4'-diaminodiphenyl ether (6FODA)

CAS Number 344-48-9

Chemistry Building Blocks, COF Ligands, Diamines and Dianhydrides, Fluorinated Building Blocks, Monomers, Porous Organic Frameworks

MSDS

2,2'-Bis(trifluoromethyl)-4,4'-diaminodiphenyl ether (6FODA) CAS 344-48-9

A fluorinated phenyl ether diamine building block

The intermediate for polyimides synthesis in application of gas separation membranes, photonics, high performance polymers, and flexible displays

Overview
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2,2'-Bis(trifluoromethyl)-4,4'-diaminodiphenyl ether (6FODA), CAS number 344-48-9, is a fluorinated diamine building block. 6FODA has an aminophenyl ether core substituted by two trifluoromethyl groups at 2,2'-positions. 2,2'-Bis(trifluoromethyl)-4,4'-diaminodiphenyl ether is usually engaged in the preparation of polyimides. These two trifluoromethyl groups hinder the π-π interaction of the benzene rings, reducing the light absorption of the polyimides. This high transparency polyimides are suitable for manufacturing flexible OLED displays. The refractive index of the polyimides can be controlled by the amount of 6FODA used in the synthesis (refractive index accuracy of ±4 × 10⁻⁴).

The casted membranes from the polyimides have good selective gas permeabilities (ideal selectivity α up to 188.43 CO₂/CH₄). The fabrics made from this polyimide fibres have low thermal conductivity (0.03 W/m⋅K), good flame retardancy, as well as excellent chemical and UV resistance which are ideal for aviation, military, and other special protections.

Multiple functional groups

For facile synthesis

Fluorinated diamine building block

For photonics, COFs, and polyamides

Worldwide shipping

Quick and reliable shipping

High purity

>99% High purity

General Information

CAS Number	344-48-9
Chemical Formula	C₁₄H₁₀F₆N₂O
Full Name	2,2'-Bis(trifluoromethyl)-4,4'-diaminodiphenyl ether
Molecular Weight	336.23 g/mol
Synonyms	4,4'-Oxybis[3-(trifluoromethyl)aniline], Bis(4-amino-2-trifluoromethylphenyl) ether
Classification / Family	Diamine building block, Fluorinated building block, Polyimides, Membranes, Photonics

Chemical Structure

Product Details

Purity	>99%
Melting Point	T_m = 127 °C
Appearance	White to off-white powder/crystal

MSDS Documentation

2,2'-Bis(trifluoromethyl)-4,4'-diaminodiphenyl ether (6FODA) MSDS Sheet

Literature and Reviews

A rigid and planar aza-based ternary anhydride for the preparation of cross-linked polyimide membrane displaying high CO₂/CH₄ separation performance, X. Zhang et al., Polymers, 14, 389(2022); DOI: 10.3390/polym14030389.
Copolyimides for gradient-index optics, A. Rosenberg et al., Opt. Mater. Express, 12(10), 4133-4146(2022); DOI: 10.1364/OME.460831.
High performance soluble polyimides from ladder-type fluorinated dianhydride with polymorphism, F. Li et al., Polymers, 10, 546(2018); DOI: 10.3390/polym10050546.
Chapter 6: High-performance polyimide fibers, Q. Zhang et al., Advanced Industrial and Engineering Polymer Research, 5, 107-116(2022); DOI: 10.1016/j.aiepr.2022.03.004.
The influences of sulfoxide electron traps in transparent polyimides with low retardation, yellow index, and CTE, P. Jiang et al., Macromol. Mater. Eng., 306, 2000606(2021); DOI: 10.1002/mame.202000606.

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