Description

Pentavinylpentamethylcyclopentasiloxane is a specialized organosilicon compound featuring a cyclic siloxane backbone with vinyl and methyl substituents. This unique molecular structure provides a highly reactive platform for cross-linking and polymerization, making it a valuable intermediate in advanced material synthesis. It is primarily sought after by R&D and production teams in the silicone polymer, specialty coatings, and electronics industries for developing high-performance, heat-resistant materials.

Application

• Silicone Resin & Polymer Synthesis: A key reactive monomer for creating cross-linked silicone networks with enhanced thermal and mechanical properties.
• High-Performance Coatings: Used in formulating heat-resistant, protective, and release coatings for industrial and automotive applications.
• Electronics Encapsulation: Serves as a precursor for silicone gels and encapsulants that protect sensitive electronic components.
• Adhesives and Sealants: Imparts durability and flexibility to specialty silicone-based adhesive formulations.
• Release Agents: Employed in the production of non-stick coatings for molds and industrial processes.
• Research & Development: A critical building block in academic and industrial labs for developing novel silicone-based materials and copolymers.

Basic Information

Product Name	Pentavinylpentamethylcyclopentasiloxane
CAS No.	17704-22-2
Molecular Formula	C15H30O5Si5
Molecular Weight	470.92 g/mol
Synonyms	1,3,5,7,9-Pentavinyl-1,3,5,7,9-pentamethylcyclopentasiloxane; Cyclopentasiloxane, 1,3,5,7,9-pentavinyl-1,3,5,7,9-pentamethyl-; D5-Vinyl; Vinyl D5; Pentavinylpentamethyl cyclopentasiloxane; Decavinylpentamethylcyclopentasiloxane (common misnomer); Cyclic vinylmethylsiloxane
EINECS	Contact for details

Quality Control

Our Pentavinylpentamethylcyclopentasiloxane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chromatographic purity analysis and functional group verification, to ensure consistency and performance. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and key physical parameters is provided with every shipment to support your quality assurance protocols.

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). Keep away from heat, sparks, and open flames. Due to the reactivity of the vinyl groups, prolonged storage should be under an inert atmosphere (e.g., nitrogen) to prevent premature polymerization or oxidation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.410 - 1.420
Density (20°C)	1.00 - 1.05 g/cm³

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