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CAS 84866-78-4

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Cyclotetrasiloxane, 2,2,4,4,6,6,8,8-octaphenyl-, homopolymer

Description:
Cyclotetrasiloxane, 2,2,4,4,6,6,8,8-octaphenyl-, homopolymer, commonly referred to as octaphenylcyclotetrasiloxane, is a silicone-based polymer characterized by its unique structure that includes alternating silicon and oxygen atoms in a cyclic arrangement, with phenyl groups attached to the silicon atoms. This compound exhibits excellent thermal stability, chemical resistance, and low surface energy, making it suitable for various applications, including coatings, sealants, and as a lubricant. Its phenyl groups enhance its compatibility with organic materials and improve its mechanical properties. Additionally, the polymer's low viscosity and high flexibility contribute to its utility in formulations requiring smooth application and durability. The material is also known for its hydrophobic properties, which can be advantageous in water-repellent applications. However, as with many silicone compounds, environmental and health considerations regarding its persistence and potential bioaccumulation are important factors in its use and regulation. Overall, octaphenylcyclotetrasiloxane is valued for its performance in specialized industrial applications.
Formula:(C48H40O4Si4)x
InChI:InChI=1S/C48H40O4Si4/c1-9-25-41(26-10-1)53(42-27-11-2-12-28-42)49-54(43-29-13-3-14-30-43,44-31-15-4-16-32-44)51-56(47-37-21-7-22-38-47,48-39-23-8-24-40-48)52-55(50-53,45-33-17-5-18-34-45)46-35-19-6-20-36-46/h1-40H
InChI key:InChIKey=VSIKJPJINIDELZ-UHFFFAOYSA-N
SMILES:[Si]1(O[Si](O[Si](O[Si](O1)(C2=CC=CC=C2)C3=CC=CC=C3)(C4=CC=CC=C4)C5=CC=CC=C5)(C6=CC=CC=C6)C7=CC=CC=C7)(C8=CC=CC=C8)C9=CC=CC=C9
Synonyms:
  • Cyclotetrasiloxane, 2,2,4,4,6,6,8,8-octaphenyl-, homopolymer
  • Octaphenylcyclotetrasiloxane homopolymer
  • Cyclotetrasiloxane, octaphenyl-, homopolymer
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