Description

1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone polymer with 5,5'-carbonylbis[1,3-isobenzofurandione], 4,4'-oxybis[benzenamine] and 3,3'-(1,1,3,3-tetramethyl-1,3-disiloxanediyl)bis[1-propanamine] is a high-performance poly(imide-siloxane) copolymer, engineered to deliver an exceptional balance of thermal stability, mechanical strength, and processability. This advanced material is crucial for applications demanding resilience under extreme conditions where standard polymers fail. It is primarily sought by manufacturers in the aerospace, microelectronics, and specialty coatings industries for creating durable, heat-resistant components and protective layers.

Application

• High-Temperature Adhesives and Sealants: Used in aerospace and automotive assemblies for bonding components exposed to thermal cycling and harsh environments.
• Flexible Circuit Board Substrates: Serves as a dielectric and protective coating in microelectronics due to its excellent thermal stability and electrical insulation properties.
• Protective & Release Coatings: Applied as a thin film to provide chemical resistance, non-stick properties, and thermal protection for industrial molds and surfaces.
• Gas Separation Membranes: Utilized in the fabrication of membranes for selective gas permeation in industrial separation processes.
• Advanced Composite Matrices: Acts as a polymer matrix in fiber-reinforced composites for lightweight, high-strength structural parts.
• Wire and Cable Insulation: Provides durable, heat-resistant insulation for electrical wiring in demanding applications.

Basic Information

Product Name	1H,3H-Benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone polymer with 5,5'-carbonylbis[1,3-isobenzofurandione], 4,4'-oxybis[benzenamine] and 3,3'-(1,1,3,3-tetramethyl-1,3-disiloxanediyl)bis[1-propanamine]
CAS No.	84329-58-8
Molecular Formula	(C48H34N4O12Si)n (Representative repeating unit)
Molecular Weight	Varied (Polymer)
Synonyms	Poly(imide-siloxane) copolymer
Polyimide-polysiloxane block copolymer
PI-PDMS copolymer
Thermoplastic polyimide siloxane
BTDA-ODA-APPS copolymer
3,3',4,4'-Benzophenonetetracarboxylic dianhydride-4,4'-oxydianiline-aminopropyl terminated polydimethylsiloxane copolymer
Siloxane-modified polyimide
EINECS	Contact for details

Quality Control

Our poly(imide-siloxane) copolymer is manufactured under a stringent quality management system. Each batch is characterized for critical parameters including inherent viscosity, glass transition temperature (Tg), and thermal decomposition onset to ensure consistent performance and batch-to-batch reproducibility. Comprehensive Certificates of Analysis (COA) detailing these specifications are provided to guarantee compliance with your technical requirements.

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). Keep away from strong acids, bases, and oxidizing agents. The material is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Yellow to amber pellets or powder
Inherent Viscosity	0.4 - 0.8 dL/g (at 30°C in DMAC)
Glass Transition Temperature (Tg)	180 - 220 °C
Thermal Decomposition Onset (Td 5%)	> 400 °C (in N2)
Siloxane Content	10 - 30 wt%
Residual Solvent	< 0.5% (GC)

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