Description

Mono-(2,3-Epoxy)Propylether Terminated Polydimethylsiloxane is a specialized reactive silicone intermediate featuring a single epoxy-functional group at the polymer chain end. This unique structure makes it a valuable building block for modifying and cross-linking polymers, enhancing properties like flexibility, adhesion, and chemical resistance. It is primarily sought by formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced material synthesis.

Application

• Reactive Modifier for Epoxy Resins: Used to improve the flexibility, impact resistance, and thermal shock resistance of cured epoxy systems.
• Cross-linking Agent for Silicones: Serves as a functional component in silicone rubber and resin formulations to create tailored networks.
• Adhesion Promoter: Enhances the bonding of coatings and adhesives to difficult substrates, including plastics and metals.
• Surface Treatment Agent: Imparts release, lubricity, or water-repellent characteristics to surfaces through chemical grafting.
• Intermediate for Specialty Polymers: Acts as a key monomer or macromonomer in the synthesis of hybrid organic-inorganic copolymers.
• Component in Encapsulants & Potting Compounds: Used in electronics to provide protective, stress-relieving layers around sensitive components.

Basic Information

Product Name	Mono-(2,3-Epoxy)Propylether Terminated Polydimethylsiloxane
CAS No.	127947-26-6
Molecular Formula	CnH2n+2O3Si(n/2) (Variable, based on chain length)
Molecular Weight	Variable (Contact for details on specific viscosity grade)
Synonyms	α-(2,3-Epoxypropoxy)-ω-methylpoly(dimethylsiloxane); Epoxypropyl Ether Terminated PDMS; Monoepoxy Functional Polydimethylsiloxane; Glycidyl Ether Terminated Silicone Fluid; Epoxy-Functional Silicone Oil; (Oxiran-2-ylmethoxy)-terminated PDMS; Reactive Silicone with Epoxy End-group
EINECS	Contact for details

Quality Control

Our Mono-(2,3-Epoxy)Propylether Terminated Polydimethylsiloxane is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including determination of epoxy value, viscosity, and purity, to ensure consistent performance and reliability. Certificates of Analysis (COA) documenting these specifications are available upon request 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). Keep away from heat sources and incompatible materials such as strong acids, bases, and amines. Under these conditions, the product is typically stable for 24 months from the date of manufacture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Epoxy Value (equiv/g)	Contact for details
Viscosity (25°C, cSt)	Contact for details
Specific Gravity (25°C)	0.95 - 1.05
Refractive Index (n20D)	1.400 - 1.420
Water Content (Karl Fischer)	≤ 0.1%

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