Description

1,3-Isobenzofurandione, 5,5'-Carbonylbis-, Polymer With 4,4'-Methylenebis[Benzenamine] And 3,3'-(1,1,3,3-Tetramethyl-1,3-Disiloxanediyl)Bis[1-Propanamine] is a high-performance polyimide precursor or oligomer, known for its exceptional thermal stability and mechanical properties. This advanced material is engineered to deliver superior performance in demanding environments where standard polymers fail. It is a critical component for manufacturers in the aerospace, electronics, and specialty coatings industries seeking to enhance product durability and reliability.

Application

• High-Temperature Adhesives & Sealants: Formulating binders for aerospace and automotive components that require long-term stability under extreme heat.
• Advanced Composite Matrices: Serving as a resin matrix for carbon fiber and other high-strength composites in structural applications.
• Electronic Encapsulants & Passivation Layers: Protecting sensitive microelectronics and semiconductor devices from moisture, chemicals, and thermal stress.
• Specialty Protective Coatings: Creating durable, chemically resistant coatings for industrial equipment, wire insulation, and flexible printed circuits.
• Membrane Technology: Used in the development of gas separation and filtration membranes due to its robust polymer backbone.
• Precursor for Polyimide Films: Acting as a key intermediate in the synthesis of polyimide films (like Kapton-type materials) for flexible electronics and insulating layers.

Basic Information

Product Name	1,3-Isobenzofurandione, 5,5'-Carbonylbis-, Polymer With 4,4'-Methylenebis[Benzenamine] And 3,3'-(1,1,3,3-Tetramethyl-1,3-Disiloxanediyl)Bis[1-Propanamine]
CAS No.	62891-63-8
Molecular Formula	(C17H6O7 • C13H14N2 • C12H32N2OSi2)n or similar polymeric form
Molecular Weight	Polymer - Contact for details
Synonyms	Poly(imide-siloxane) copolymer; Polyimide-polysiloxane block copolymer; BTDA-MDA-APPS copolymer; 5,5'-Carbonylbis(1,3-isobenzofurandione) polymer with 4,4'-methylenebis[benzenamine] and 3,3'-(1,1,3,3-tetramethyl-1,3-disiloxanediyl)bis[1-propanamine]; Siloxane-modified polyimide oligomer; Thermally stable polyimide siloxane; Bis(3-aminopropyl)tetramethyldisiloxane-BTDA-MDA copolymer
EINECS	Contact for details

Quality Control

Our production of this advanced polymer adheres to rigorous quality control protocols to ensure batch-to-batch consistency and performance. Key parameters such as molecular weight distribution, siloxane content, imidization degree, and thermal stability are strictly monitored. A comprehensive Certificate of Analysis (COA) detailing purity, viscosity, and functional group analysis is provided with each shipment to support your quality assurance and R&D processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep away from strong acids, bases, and oxidizing agents to maintain polymer integrity.

Specification

Item	Specification
Appearance	Yellow to amber solid or viscous solution
Identification (IR)	Conforms to structure
Solid Content (if in solvent)	20% - 50% (or as specified)
Viscosity (25°C)	Contact for details
Imidization Degree	> 95% (Typical)
Glass Transition Temperature (Tg)	> 200°C
Siloxane Content	5% - 30% (Adjustable)
Residual Solvent (GC)	< 1.0%

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