Description

Phenylmethylvinylchlorosilane is a highly reactive organosilicon monomer featuring a phenyl, methyl, vinyl, and chloro substituent on the silicon atom. This unique combination of functional groups makes it a critical building block for synthesizing specialized silicone polymers and silane coupling agents. It is essential for manufacturers in the silicone elastomer, resin, and advanced materials sectors who require precise control over polymer cross-linking and surface modification. The compound, identified as CAS NO 17306-05-7, is valued for its ability to introduce vinyl functionality into siloxane chains, enabling subsequent curing or grafting reactions.

Application

• Silicone Polymer Synthesis: A key monomer for producing vinyl-functionalized polydimethylsiloxanes (PDMS) and MQ silicone resins.
• Cross-Linking Agent: Imparts vinyl groups into silicone networks for peroxide-cured or platinum-catalyzed addition cure systems (e.g., for HCR, LSR).
• Silane Coupling Agent Precursor: Used to manufacture adhesion promoters for enhancing the bond between organic polymers and inorganic surfaces like glass, metals, or minerals.
• Surface Modification: Functionalizes silica, quartz, or other fillers to improve compatibility and dispersion in silicone rubber compounds.
• Specialty Intermediates: Serves as a starting material for synthesizing more complex organosilicon compounds used in release coatings, encapsulants, and sealants.
• Research & Development: Employed in academic and industrial R&D for developing novel hybrid organic-inorganic materials and functional coatings.

Basic Information

Product Name	Phenylmethylvinylchlorosilane
CAS No.	17306-05-7
Molecular Formula	C9H11ClSi
Molecular Weight	182.72 g/mol
Synonyms	Chloro(methyl)phenylvinylsilane; Methylphenylvinylchlorosilane; Vinyl(methyl)phenylchlorosilane; Phenylmethylvinylchlorosilane; Silane, chloromethylphenylvinyl-; (Chloromethylphenylvinyl)silane; (Methylphenylvinyl)chlorosilane; 1-Chloro-1-methyl-1-phenyl-1-silabut-3-ene
EINECS	241-340-7

Quality Control

Our Phenylmethylvinylchlorosilane is produced under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical methods including gas chromatography (GC), nuclear magnetic resonance (NMR), and Karl Fischer titration. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 15-25°C. Due to its hygroscopic and highly volatile nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) to prevent moisture absorption and decomposition. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Density (at 20°C)	1.00 - 1.05 g/mL
Refractive Index (n20/D)	1.510 - 1.520
Water Content (KF)	≤ 0.1%

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