Description

Dimethylsiloxane, [(1-Oxo-2-Propenyl)Oxy]Methyl-Terminated is a specialized, reactive silicone derivative featuring a terminal acrylate (or methacrylate) functional group. This unique structure is engineered to provide excellent cross-linking capabilities and enhanced compatibility with organic polymer systems. It is a critical raw material for formulators seeking to impart silicone-like properties such as flexibility, hydrophobicity, and thermal stability into advanced materials. Key industries that utilize this compound include advanced adhesives and sealants, UV-curable coatings, and high-performance elastomers.

Application

• UV-Curable Coatings & Inks: Acts as a reactive diluent and modifier to enhance flexibility, scratch resistance, and surface slip in radiation-curable formulations.
• Pressure-Sensitive Adhesives (PSAs): Incorporated to improve tack, peel strength, and low-temperature performance of silicone and hybrid acrylic-silicone adhesives.
• Silicone Release Coatings: Used in the production of release liners for labels and tapes, offering controllable release force and excellent anchorage.
• Elastomer & Rubber Modification: Serves as a cross-linking agent or additive to increase the hydrophobicity, dielectric properties, and thermal stability of synthetic rubbers.
• Fiber & Textile Treatment: Applied as a key component in finishes to provide durable water repellency (DWR) and a soft hand feel.
• Electronic Encapsulants & Potting Compounds: Enhances the moisture resistance, flexibility, and dielectric performance of protective materials for electronic components.

Basic Information

Product Name	Dimethylsiloxane, [(1-Oxo-2-Propenyl)Oxy]Methyl-Terminated
CAS No.	73398-65-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Acrylated Dimethylsiloxane; Acrylate-Functional Polydimethylsiloxane; Methacryloxypropyl-Terminated Polydimethylsiloxane; Acrylate-Terminated PDMS; Silicone Acrylate; (3-Acryloxypropyl)methylsiloxane-dimethylsiloxane copolymer; Reactive Silicone Acrylate Oligomer; UV-Curable Silicone Acrylate
EINECS	Contact for details

Quality Control

Our Dimethylsiloxane, [(1-Oxo-2-Propenyl)Oxy]Methyl-Terminated is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in key parameters such as acrylate functionality, viscosity, and purity. Certificates of Analysis (COA) documenting these specifications are available for every shipment 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 / 59-77°F). Keep away from heat sources and incompatible materials. Due to its reactive acrylate group, prolonged storage should be under an inert atmosphere (e.g., nitrogen) to prevent premature polymerization. Shelf life is typically 12 months when stored under recommended conditions.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Viscosity @ 25°C	Contact for details
Acrylate Equivalent Weight (AEW)	Contact for details
Specific Gravity @ 25°C	Contact for details
Refractive Index @ 25°C	Contact for details
Purity (HPLC)	> 95.0%
Water Content (KF)	< 0.1%

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