Description

Diacetoxymethyl Terminated Polydimethylsiloxane is a specialized organosilicon compound featuring reactive acetoxy end groups. This unique structure makes it a valuable reactive intermediate and crosslinking agent in silicone-based formulations. It is essential for manufacturers requiring precise control over polymer architecture and final material properties. Key industries that utilize this product include advanced adhesives, sealants, and specialty silicone elastomers.

Application

• As a reactive crosslinker in moisture-curing room temperature vulcanizing (RTV) silicone sealants and adhesives.
• An intermediate in the synthesis of custom silicone polymers and copolymers with tailored properties.
• A key component in the formulation of high-performance, one-part acetoxy-cure silicone systems.
• Used in the production of release coatings and pressure-sensitive adhesives (PSAs).
• Employed in the manufacture of silicone potting compounds and encapsulants for electronics.
• As a surface-modifying agent or coupling agent in composite materials.

Basic Information

Product Name	Diacetoxymethyl Terminated Polydimethylsiloxane
CAS No.	70879-95-7
Molecular Formula	Contact for details
Molecular Weight	Varies by chain length (n)
Synonyms	Acetoxy-Terminated Polydimethylsiloxane; α,ω-Diacetoxymethyl Polydimethylsiloxane; Polydimethylsiloxane, diacetoxymethyl terminated; Acetoxy-Functional Silicone Fluid; Silicone Crosslinker; RTV Silicone Crosslinking Agent; PDMS, diacetoxymethyl terminated
EINECS	Contact for details

Quality Control

Our Diacetoxymethyl Terminated Polydimethylsiloxane is produced under stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent purity, functionality, and performance. Key parameters such as acetoxy content, viscosity, and molecular weight distribution are verified. Certificates of Analysis (COA) detailing all specifications are available upon request to support your quality assurance processes.

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); containers must be kept tightly sealed to prevent degradation from atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Acetoxy Content	Contact for details
Viscosity (25°C)	Specified grade dependent
Specific Gravity (25°C)	~0.97 - 1.05
Volatile Content	< 2.0%

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