Description

[5,5'-Biisobenzofuran]-1,1',3,3'-Tetrone, Polymer With 4,4'-Oxybis[Benzenamine] is a high-performance polyimide precursor, specifically a poly(amic acid), known for its exceptional thermal stability and mechanical properties upon imidization. This material is critical for creating robust, heat-resistant coatings, films, and composite matrices that must perform reliably under extreme conditions. It is essential for manufacturers in the aerospace, electronics, and advanced industrial materials sectors seeking to enhance product durability and thermal management.

Application

• As a key precursor for the synthesis of high-temperature polyimide resins and films.
• Manufacture of flexible printed circuit boards (FPCBs) and high-performance electrical insulation materials.
• Production of advanced composite matrices for aerospace components requiring lightweight, heat-resistant properties.
• Formulation of protective and dielectric coatings for semiconductors and microelectronic devices.
• Used in the creation of high-strength adhesives and sealants for demanding industrial environments.
• Research and development of novel polymeric materials for next-generation engineering plastics.

Basic Information

Product Name	[5,5'-Biisobenzofuran]-1,1',3,3'-Tetrone, Polymer With 4,4'-Oxybis[Benzenamine]
CAS No.	26298-81-7
Molecular Formula	(C20H8O8 • C12H12N2O)n
Molecular Weight	Polymeric substance
Synonyms	Poly(amic acid) from 3,3',4,4'-Biphenyltetracarboxylic dianhydride (BPDA) and 4,4'-Oxydianiline (ODA); BPDA-ODA Poly(amic Acid); Polyimide Precursor (BPDA/ODA); 1,1',3,3'-Biphenyltetracarboxylic dianhydride polymer with 4,4'-oxydianiline; Poly[[5,5'-[1,1'-biphenyl]-3,3',4,4'-tetrayltetrakis(2-benzofuran-1,3-dione)]-co-[oxybis(4,1-phenylene)amine]]; BPDA/ODA Poly(amic Acid) Solution; High-Temp Polyamic Acid Resin.
EINECS	Contact for details

Quality Control

Our [5,5'-Biisobenzofuran]-1,1',3,3'-Tetrone, Polymer With 4,4'-Oxybis[Benzenamine] is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including viscosity, solid content, and inherent viscosity measurements, to ensure batch-to-batch consistency and performance for your specific application. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry place. For long-term stability, store at temperatures between 2°C and 8°C. Allow the container to reach room temperature before opening to prevent moisture condensation. Use under an inert atmosphere such as nitrogen for optimal shelf life.

Specification

Item	Specification
Appearance	Yellow to amber viscous solution or solid
Solid Content	10-20% (in typical solvent, e.g., NMP)
Inherent Viscosity	0.5 - 2.0 dL/g (at 30°C)
Identification (IR)	Conforms to structure
Moisture Content (KF)	< 1.0%
Solvent (Typical)	N-Methyl-2-pyrrolidone (NMP)
Storage Stability	Stable for 6 months at 2-8°C under inert atmosphere

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.