17704-22-2

Usage

Uses

Used in Silicone Polymer and Resin Production:
PENTAVINYLPENTAMETHYLCYCLOPENTASILOXANE is used as a cross-linking agent for enhancing the durability and strength of silicone-based materials. Its vinyl groups facilitate the formation of robust bonds with other chemicals, contributing to the production of high-performance silicone polymers and resins.
Used in Coating Industry:
In the coating industry, PENTAVINYLPENTAMETHYLCYCLOPENTASILOXANE is used as a key ingredient in formulating silicone-based coatings. Its ability to create strong and heat-resistant bonds ensures the longevity and protective qualities of these coatings.
Used in Adhesive and Sealant Production:
PENTAVINYLPENTAMETHYLCYCLOPENTASILOXANE is utilized as a critical component in the manufacturing of silicone adhesives and sealants. Its capacity to form durable bonds, coupled with its heat and water resistance, makes it an essential material for creating effective and long-lasting adhesive and sealant products.
Used in Industrial Applications:
Across various industrial sectors, PENTAVINYLPENTAMETHYLCYCLOPENTASILOXANE is employed for its heat resistance and water repellent properties. These attributes make it suitable for a wide range of applications where high performance and reliability are required.

InChI:InChI=1/C15H30O5Si5/c1-11-21(6)16-22(7,12-2)18-24(9,14-4)20-25(10,15-5)19-23(8,13-3)17-21/h11-15H,1-5H2,6-10H3

Upstream product

• 124-70-9 Dichloromethylvinylsilane 
• 5507-44-8 methylvinyldiethoxysilane 
• 107-51-7 octamethyltrisiloxabe 

Relevant academic research and scientific papers

Hydrocarbyl the cyclosiloxane preparation method (by machine translation)

The invention discloses a preparation method of alkyl cyclosiloxane. The preparation method is characterized by comprising the following steps: taking alkyl halogenosilane as a raw material, taking crown ether as a solvent and dropping the alkyl halogenosilane in a mixed solution formed by water and the crown ether while continuously stirring the alkyl halogenosilane; carrying out hydrolysis at a certain temperature to carry out condensation polymerization; standing after the reaction to carry out layering; and directly carrying out decompressed rectification on the obtained hydrolyzed oil to separate trialkylcyclotrisiloxane, tetraalkylcyclotetrasiloxane, pentaalkylcyclopentasiloxane and hexaalkylcyclohexasiloxane. The preparation method has the advantages that alcohols and low-boiling point hydrocarbons are not used as solvents, the crown ether is used as solvent and direct rectification is carried out on the prepared hydrolyzed oil to obtain the alkyl cyclosiloxane, so that the processes of washing, neutralization, drying and filtering are saved; and the solvent which undergoes standing and layering after the hydrolysis can be reused or can be cooled to a certain temperature to separate out the crown ether for recovery, so that the production cost is saved.

Reaction of organylchlorosilanes with dimethyl sulfoxide in the presence of octamethyltrisiloxane

Dichloro(methyl)(vinyl)silane reacts with DMSO in the presence of octamethyltrisiloxane to form cyclooligomethyl(vinyl)siloxanes(MeViSiO) n (n = 3-6). The reaction involves disproportionation of octamethyltrisiloxane into hexamethyldisiloxane and decamethyltetrasiloxane. Along with the latter two products, insertion products of methyl vinyl silanone into both permethyloligosiloxanes were identified. Alkyltrichlorosilanes RSiCl3 (R = Me, Et) react with DMSO in the presence of octamethyltrisiloxane to form cyclic oligoalkyltrichlorosiloxanes (RClSiO) m (m = 3-6).