Description

Poly(Dimethylsiloxane), Diglycidyl Ether Terminated is a specialized reactive silicone polymer featuring terminal epoxy (glycidyl ether) groups. This unique bifunctional structure provides a versatile platform for chemical modification, enabling the introduction of flexible, hydrophobic polydimethylsiloxane (PDMS) segments into various polymer matrices. It is essential for formulators and researchers in the coatings, adhesives, and advanced materials sectors seeking to enhance flexibility, thermal stability, and surface properties. The compound is identified by CAS No. 130167-23-6.

Application

• Epoxy Resin Modification: Used as a flexibilizer and toughening agent for epoxy resins in high-performance coatings, adhesives, and composite matrices.
• Silicone Hybrid Polymers: Serves as a key monomer or crosslinker in the synthesis of silicone-epoxy copolymers and hybrid organic-inorganic networks.
• Surface Coatings: Imparts excellent water repellency, release properties, and weatherability to protective and functional surface coatings.
• Adhesive & Sealant Formulations: Enhances the flexibility, adhesion, and durability of epoxy-based adhesive and sealant systems.
• Electronic Encapsulants: Employed in potting and encapsulation compounds to provide stress relief and improved thermal performance for electronic components.
• Fiber & Textile Treatment: Acts as a reactive finishing agent to confer durable softness, lubricity, and water resistance to fibers and textiles.

Basic Information

Product Name	Poly(Dimethylsiloxane), Diglycidyl Ether Terminated
CAS No.	130167-23-6
Molecular Formula	CnH2n+2O3Sin/2 (n varies by chain length)
Molecular Weight	Variable (Contact for details based on specific grade/n-value)
Synonyms	α,ω-Diglycidoxypropyl Terminated Polydimethylsiloxane; Epoxy-Terminated PDMS; Glycidyl Ether Terminated Silicone Oil; Diglycidyl Ether Terminated Polydimethylsiloxane; PDMS Diglycidyl Ether; Silicone Diepoxide; Epoxy-Functional Siloxane; Reactive Silicone Fluid
EINECS	Contact for details

Quality Control

Our Poly(Dimethylsiloxane), Diglycidyl Ether Terminated is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in epoxy equivalent weight (EEW), viscosity, and purity. Certificates of Analysis (COA) detailing key specifications are provided with every shipment to support your quality assurance protocols.

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 product is hygroscopic (moisture-sensitive); ensure containers are sealed immediately after use to prevent absorption of atmospheric moisture, which can affect reactivity.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Epoxy Equivalent Weight (EEW)	Contact for details
Viscosity @ 25°C	Contact for details
Specific Gravity @ 25°C	~0.97 - 1.02
Water Content	< 0.1% (Karl Fischer)
Identification (IR)	Conforms to structure

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