1438-79-5 Usage
Description
VINYLPENTAMETHYLDISILOXANE is an organosilicon compound that features a vinyl group attached to a pentamethylsiloxane backbone. It is recognized for its high thermal and oxidative stability, water repellency, and dielectric properties, which contribute to its versatility and value in a range of applications.
Uses
Used in Silicone Polymers and Resins:
VINYLPENTAMETHYLDISILOXANE is used as a building block for the synthesis of silicone polymers and resins, due to its capacity to crosslink and create strong, flexible bonds.
Used in Coatings, Adhesives, and Sealants:
VINYLPENTAMETHYLDISILOXANE is utilized in the production of various coatings, adhesives, and sealants, where its bonding and stability properties are advantageous.
Used in Personal Care Products:
VINYLPENTAMETHYLDISILOXANE is also found in the formulation of personal care products, such as skincare and haircare items, where its properties can enhance the performance and quality of these products.
Used in Various Industries:
Due to its diverse properties, VINYLPENTAMETHYLDISILOXANE is employed across a wide range of industries, including but not limited to, the manufacturing of consumer goods, industrial applications, and the development of high-performance materials.
Check Digit Verification of cas no
The CAS Registry Mumber 1438-79-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,4,3 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1438-79:
(6*1)+(5*4)+(4*3)+(3*8)+(2*7)+(1*9)=85
85 % 10 = 5
So 1438-79-5 is a valid CAS Registry Number.
InChI:InChI=1/C7H18OSi2/c1-7-10(5,6)8-9(2,3)4/h7H,1H2,2-6H3
1438-79-5Relevant articles and documents
PROCESSES FOR SYNTHESIZING UNSYMMETRICAL DISILOXANES
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Paragraph 0047-0048, (2021/06/22)
Described herein are methods for making alkenyl disiloxanes, comprising combining an alkenyl halosilane with an alkyl halosilane and adding the mixture to water, an acidic aqueous solution, or a basic aqueous solution. The ratio of the alkenyl halosilane to the alkyl halosilane is about 10:1 to about 1:10. The alkenyl halosilane and the alkyl halosilane are mixed at about 20 °C to about 45 °C. The reaction product is separated and washed with saturated alkali carbonate solution.
Reaction of 1-hydrohexafluoroisobutenyloxytrimethylsilane with fluoride ion sources. 2,2,2′,2′-Tetrakis(trifluoromethyl)divinyl ether
Volkonskii,Kagramanova,Mysov,Mysova
, p. 2774 - 2781 (2007/10/03)
The reaction of 1-hydrohexafluoroisobutenyloxytrimethylsilane (2a) with cesium fluoride in diglyme leads to elimination of trimethylfluorosilane to form the 1-hydrohexafluoroisobutenolate anion (3), which is silylated with trialkylchlorosilanes at the oxygen atom. In the presence of bis(trifluoromethyl)ketene N,N,O-trimethylaminoacetal or N-(α,α- difluoroalkyl)-dialkylamines, silane 2a is transformed into 2,2,2′, 2′-tetrakis(trifluoromethyl)divinyl ether. The reaction of trifluoroacetic anhydride with N-(1,1,2,2-tetrafluoroethyl)diethylamine affords trifluoroacetyl fluoride in quantitative yield.
