Bisphenol a diethyl dianhydride (BPADA) CAS 38103-06-9

Synonyms: 4,4'-Bisphenol A dianhydride; 4,4'-Bisphenol A diphthalic anhydride; Ultem dianhydride; 4,4'-(4,4'-Isopropylidenediphenoxy)bis(phthalic anhydride); 4,4'-(4,4'-Isopropylidenediphenoxy)diphthalic anhydride; 2,2-Bis[4-(3,4-dicarboxyphenoxy)phenyl]propane dianhydride

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

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Product Details

Aure Chemical Delivers Excellence in BPADA

Bisphenol A diethyl dianhydride (BPADA, CAS 38103-06-9) is primarily used as a monomer in the synthesis of high-performance polyimides and related polymers, providing excellent thermal stability (Tg up to 207°C), mechanical strength, optical transparency, chemical inertness, and flame resistance.

Basic Information of BPADA

Product Name	Bisphenol a diethyl dianhydride
Abbreviation	BPADA
CAS Number	38103-06-9
Molecular Formula	C31H20O8
Molecular Weight	520.49 g/mol
Appearance	White to light yellow powder to crystal
Purity	≥99%
Package	1kg/bottle, 20kg/drum, or customized
Molecular formula

Key Properties

High thermal stability and chemical resistance
Used as a monomer for high-performance polyimide materials
Good optical transparency in derived films
Moisture sensitive—requires dry storage

Key Applications of BPADA

Electronics and Microelectronics: Incorporated into polyimide films for flexible printed circuit boards, semiconductor manufacturing, high-frequency components (e.g., 5G technology), and insulation materials, benefiting from low dielectric constant and high-temperature resistance.

Display Technologies: Utilized in colorless, UV-resistant polyimide films for flexible displays, foldable mobile phones, wearable devices, and optoelectrical applications like liquid crystal displays, due to high transparency and stretchability.

Aerospace and Aviation: Applied in heat-resistant coatings, insulation for spacecraft, and lightweight composites for extreme environments.

Automotive: Employed in high-temperature resistant and lightweight components for enhanced performance and durability.

Energy and Separation Technologies: Used in ion transport membranes for fuel cells and gas separation films, leveraging chemical inertness.

Other Industrial Uses: Involved in superhydrophobic aerogels (with Lotus effect), specialized adhesives, coatings for extreme conditions, and advanced materials in nanotechnology and lasers.

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