Description

Poly(Dimethylsiloxane), Monoglycidyl Ether Terminated is a reactive silicone polymer featuring terminal glycidyl ether groups, which impart epoxy functionality to the siloxane backbone. This unique structure is critical for introducing flexibility, hydrophobicity, and thermal stability into cross-linked networks while providing reactive sites for covalent bonding. It is an essential intermediate for formulators and manufacturers in the adhesives, sealants, coatings, and advanced composite materials industries seeking to enhance material performance.

Application

• Reactive Modifier for Epoxy Resins: Used to flexibilize and toughen epoxy systems for coatings, adhesives, and composite matrices, improving impact resistance and reducing internal stress.
• Cross-linking Agent for Silicones: Serves as a functional cross-linker in silicone formulations to create networks with tailored mechanical and surface properties.
• Adhesive & Sealant Formulation: A key component in high-performance sealants and adhesives, contributing to durability, water resistance, and adhesion to low-surface-energy substrates.
• Surface Modification & Coupling Agent: Used to treat inorganic fillers (e.g., silica) or surfaces to improve compatibility and bonding between organic and inorganic phases.
• Specialty Coatings: Incorporated into release coatings, protective coatings, and primers to enhance surface slip, chemical resistance, and weatherability.
• Polymer Synthesis: Acts as a macromonomer or chain extender in the synthesis of block and graft copolymers for specialized material applications.

Basic Information

Product Name	Poly(Dimethylsiloxane), Monoglycidyl Ether Terminated
CAS No.	157723-26-7
Molecular Formula	Contact for details
Molecular Weight	Varies by chain length (n)
Synonyms	α,ω-Bis(glycidyloxypropyl)polydimethylsiloxane
Glycidoxypropyl Terminated Polydimethylsiloxane
Epoxy-Functional Polydimethylsiloxane
PDMS-Glycidyl Ether
Bis(3-glycidoxypropyl) Polydimethylsiloxane
Epoxy-Terminated Silicone Fluid
Glycidyl Ether Terminated Siloxane Polymer
EINECS	Contact for details

Quality Control

Our Poly(Dimethylsiloxane), Monoglycidyl Ether Terminated is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in epoxy equivalent weight, viscosity, and purity. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance and regulatory compliance needs.

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). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and premature reaction.

Specification

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

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