Description

Poly(Dimethylsiloxane) Etherimide is a high-performance silicone-polyimide hybrid polymer that combines the thermal stability and mechanical strength of polyimides with the flexibility and surface properties of silicones. This unique copolymer is engineered to deliver exceptional performance in demanding environments where standard materials fail. It is critical for advanced material scientists and engineers in the aerospace, electronics, and specialty coatings industries seeking to enhance product durability and functionality.

Application

• As a high-temperature adhesive and sealant in aerospace and automotive engine compartments.
• As a dielectric coating and stress buffer layer for flexible printed circuit boards (PCBs) and microelectronics.
• As a release agent and surface modifier in high-temperature molding processes for composites.
• As a key component in specialty coatings requiring thermal stability, chemical resistance, and low surface energy.
• As a compatibilizer and additive to improve the toughness and thermal properties of engineering plastics.
• For fabricating high-performance membranes and films used in gas separation or filtration at elevated temperatures.

Basic Information

Product Name	Poly(Dimethylsiloxane) Etherimide
CAS No.	99904-16-2
Molecular Formula	(C11H12N2O5 · C2H6OSi)n
Molecular Weight	Varies by polymer chain length (Contact for details)
Synonyms	PDMS-Polyimide Copolymer; Silicone-Polyimide Block Copolymer; Poly(dimethylsiloxane)-block-poly(etherimide); Polyimide-siloxane; Poly(imide-siloxane) Copolymer; Thermoplastic Polyimide Siloxane; PSI; Silicone Modified Polyetherimide
EINECS	Contact for details

Quality Control

Our Poly(Dimethylsiloxane) Etherimide is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in molecular weight distribution, thermal properties, and chemical composition. Certificates of Analysis (COA) detailing key parameters such as inherent viscosity, glass transition temperature (Tg), and residual solvent content are available upon request.

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, strong bases, and organic solvents. Due to its polymeric nature, protect from excessive heat and moisture to maintain product integrity.

Specification

Item	Specification
Appearance	Pale yellow to amber pellets or powder
Identification (IR)	Conforms to structure
Inherent Viscosity	0.35 - 0.65 dL/g (typical)
Glass Transition Temp (Tg)	180 - 250°C (DSC)
Siloxane Content	10 - 50% (by weight, as specified)
Residual Solvent	< 0.5% (GC)
Moisture Content	< 0.1% (KF)

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