Description

Phenylvinyldimethoxysilane is a versatile organosilicon compound that serves as a critical coupling agent and monomer in advanced material synthesis. Its unique structure, featuring both phenyl and vinyl groups attached to a silicon atom, enables it to form strong interfacial bonds between organic polymers and inorganic surfaces. This product is essential for manufacturers in the silicone, composite, and adhesive industries seeking to enhance material properties. Phenylvinyldimethoxysilane CAS NO 20151-57-9 is a key raw material for developing high-performance, durable materials.

Application

• As a coupling agent in fiberglass-reinforced plastics and mineral-filled composites to improve mechanical strength and moisture resistance.
• As a surface modifier for silica, glass, and other inorganic fillers to enhance their compatibility with polymer matrices.
• As a key monomer or crosslinking agent in the synthesis of specialty silicone resins and polymers with tailored properties.
• In the formulation of high-performance adhesives, sealants, and coatings to improve adhesion to difficult substrates.
• For the hydrophobic treatment of surfaces in construction and protective coating applications.
• In the production of silicone intermediates for further chemical synthesis in the pharmaceutical and agrochemical sectors.

Basic Information

Product Name	Phenylvinyldimethoxysilane
CAS No.	20151-57-9
Molecular Formula	C10H14O2Si
Molecular Weight	194.30 g/mol
Synonyms	Dimethoxy(phenyl)vinylsilane; Vinylphenyldimethoxysilane; Phenylvinyldimethoxysilane; (Ethenyl)dimethoxyphenylsilane; Dimethoxy(phenylvinyl)silane; Phenyl vinyl dimethoxy silane; Silane, dimethoxy(phenyl)vinyl-; (Vinylphenyl)dimethoxysilane
EINECS	243-576-3

Quality Control

Our Phenylvinyldimethoxysilane is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including gas chromatography (GC), to ensure high purity and consistent performance. We provide detailed Certificates of Analysis (COA) with each shipment, documenting key parameters such as assay and impurity profiles. Our quality commitment ensures the material meets the stringent requirements for use in advanced material synthesis and industrial applications.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Density (20°C)	1.00 - 1.05 g/cm³
Refractive Index (n20D)	1.490 - 1.510

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