3,3',4,4'-Benzophenonetetracarboxylic dianhydride (BTDA)

CAS Number 2421-28-5

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

MSDS

3,3',4,4'-Benzophenonetetracarboxylic dianhydride (BTDA) CAS 2421-28-5

A benzophenone-cored dianhydride building block

As an intermediate for the synthesis of polyimides in application of photosensitizers, high-performance polymers and OFETs

Overview
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3,3',4,4'-Benzophenonetetracarboxylic dianhydride (BTDA, CAS number 2421-28-5) is derived from benzophenone with two dianhydride on both terminals. The primary use of 3,3',4,4'-Benzophenonetetracarboxylic dianhydride is for synthesizing polyimide with primary amines undergoing nucleophilic substitution followed by condensation reactions. Benzophenone-cored polyimide is used in photocatalytic dye degradation applications such as methylene blue in water. Potentially it can extend its applications to dye-sensitized solar cells (DSSCs) and photocatalytic reactions.

The polyimide/copolymer formed by BTDA has shown high thermal stability and good mechanical properties. This polyimide is an electret and used as a dielectric layer for high performance OFET memory devices.

General Information

CAS Number	2421-28-5
Chemical Formula	C₁₇H₆O₇
Full Name	3,3',4,4'-Benzophenonetetracarboxylic dianhydride
Molecular Weight	322.23 g/mol
Synonyms	Benzophenone-3,3′,4,4′-tetracarboxylic dianhydride 4,4′-Carbonyldiphthalic anhydride BTDA
Classification / Family	Benzophenone derivatives, Dianhydride building blocks, Polyimides, OFETs, Photosensitizers

Chemical Structure

Product Details

Purity	>98.5%
Melting Point	T_m = 218 °C – 222 °C
Appearance	White to off-white powder

MSDS Documentation

3,3',4,4'-Benzophenonetetracarboxylic dianhydride (BTDA) MSDS Sheet

Literature and Reviews

Developing high-efficiency π conjugated polymer semiconductor for photocatalytic degradation of dyes under visible light irradiation, S. Chu et al., RSC Adv., 4, 57153-57158(2014); DOI: 10.1039/C4RA11345D.
Electrospun antibacterial poly(vinyl alcohol)/Ag nanoparticles membrane grafted with 3,3′,4,4′-benzophenone tetracarboxylic acid for efficient air filtration, S. Li., Appl. Surf. Sci., 533, 147516(2020); DOI: 10.1016/j.apsusc.2020.147516.
Intrinsically negative photosensitive polyimides with enhanced high-temperature dimensional stability and optical transparency for advanced optical applications via simultaneous incorporation of trifluoromethyl and benzanilide units: preparation and properties, Y. Gao et al., polymers, 14, 3733(2022), DOI: 10.3390/polym14183733.
Nonvolatile transistor memory devices using high dielectric constant polyimide electrets, Y.-H. Chou et al., J. Mater. Chem. C, 1, 3235–3243(2013); DOI: 10.1039/c3tc30252k.
Polymeric charge storage electrets for nonvolatile organic field effect transistor memory devices, Y.-H. Chou et al., Polym. Chem., 6, 341-352(2015); DOI: 10.1039/C4PY01213E.
4,4',4''-triaminotriphenylamine-based porous polyimide as visible light-driven photocatalysts, Q. Wang et al., New J. Chem., 42, 12205-12211(2018); DOI: 10.1039/C8NJ02173B.
Synthesis and properties of new clay-reinforced aromatic polyimide/nanocomposite-based 3,3′,4,4′-benzophenonetetracarboxylic dianhydride and 1,3-bis(4-aminophenoxy)propane, K. Faghihi et al., Sci. Eng. Compos. Mater., 21(2), 151–157(2014); DOI: 10.1515/secm-2012-0136.

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