Description

Vinylmethyldiacetoxysilane is a versatile organosilicon compound primarily used as a key intermediate in the synthesis of silicone polymers and as a coupling agent. Its value lies in its dual functional groups, enabling it to act as a crosslinker and adhesion promoter in various material systems. This product is essential for manufacturers in the silicone rubber, sealant, adhesive, and specialty coatings industries seeking to enhance material properties and performance.

Application

• As a crosslinking agent in the production of moisture-curable silicone sealants and adhesives.
• As a key intermediate for synthesizing functional silicone polymers and resins.
• As a surface treatment agent to improve the adhesion of polymers to inorganic substrates like glass or metals.
• In the formulation of release coatings and primers for industrial applications.
• For the modification of fillers to enhance compatibility and dispersion in silicone matrices.
• In research and development for creating novel hybrid organic-inorganic materials.

Basic Information

Product Name	Vinylmethyldiacetoxysilane
CAS No.	2944-70-9
Molecular Formula	C7H12O4Si
Molecular Weight	188.25 g/mol
Synonyms	Methylvinyldiacetoxysilane; Diacetoxymethylvinylsilane; (Methylvinyl)dioxydiacetoxysilane; Vinylmethyldiacetoxysilane; Acetic acid, (methylvinylsilylene) di-; Silane, diacetoxymethylvinyl-; Methylvinylsilanediol diacetate; (Acetyloxy)(acetyloxy)methylvinylsilane
EINECS	220-947-6

Quality Control

Our Vinylmethyldiacetoxysilane is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay and impurity profiling. A Certificate of Analysis (COA) detailing all relevant specifications is provided with every shipment to guarantee compliance with your technical requirements.

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 material is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.07 - 1.10 g/cm³
Refractive Index (n20D)	1.410 - 1.420

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