Description

Norbornenyl Ethyl Methyl Dichlorosilane is a highly reactive organosilicon monomer featuring a norbornene functional group, making it a critical building block for advanced silicone polymers and hybrid materials. Its unique structure enables cross-linking via ring-opening metathesis polymerization (ROMP) and hydrosilylation, providing exceptional thermal stability and mechanical properties to the final products. This specialty silane is essential for R&D and production in high-performance materials sectors, including electronics, aerospace, and advanced coatings, where tailored polymer architectures are required.

Application

• Silicone Polymer Synthesis: A key monomer for synthesizing novel polyhedral oligomeric silsesquioxanes (POSS) and other hybrid silicone polymers with enhanced properties.
• Advanced Release Coatings: Used in the formulation of high-temperature, durable release liners for industrial tapes and composites.
• Electronic Encapsulants & Underfills: Serves as a precursor for silicones with low dielectric constant and high thermal stability, ideal for semiconductor protection.
• Adhesive & Sealant Formulations: Imparts improved adhesion, flexibility, and environmental resistance to specialty silicone-based adhesives.
• Photoresist & Lithography Materials: Employed in the development of next-generation photoresists for microelectronics fabrication due to its etch resistance.
• Surface Modification Agent: Functionalizes inorganic surfaces (e.g., silica, metals) to create hydrophobic or specific reactive interfaces.
• Research & Development: A valuable reagent for academic and industrial research in polymer chemistry and material science.

Basic Information

Product Name	Norbornenyl Ethyl Methyl Dichlorosilane
CAS No.	198570-38-6
Molecular Formula	C10H16Cl2Si
Molecular Weight	235.23 g/mol
Synonyms	5-Norbornene-2-ethylmethyldichlorosilane; 2-(Dichloromethylsilyl)ethyl-5-norbornene; 5-Ethylmethylnorbornenyl Dichlorosilane; Norbornenylethylmethyldichlorosilane; Bicyclo[2.2.1]hept-5-ene-2-ethylmethyldichlorosilane; Dichloro(5-norbornen-2-ylethylmethyl)silane; (5-Norbornen-2-ylethyl)methyldichlorosilane
EINECS	Contact for details

Quality Control

Our Norbornenyl Ethyl Methyl Dichlorosilane is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including GC, NMR, and Karl Fischer titration. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment, ensuring it meets the stringent requirements for advanced material synthesis and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at temperatures between 2°C and 8°C (refrigerated) to maximize shelf-life and maintain stability. This compound is hygroscopic (moisture-sensitive) and reacts with strong acids/organic solvents; it must be handled under an inert atmosphere (e.g., nitrogen or argon) in a dry environment to prevent hydrolysis and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 97.0%
Water Content (Karl Fischer)	≤ 0.1%
Density (at 20°C)	~1.12 g/cm³
Refractive Index (n20D)	~1.495 - 1.505

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