Cyclic tetrasiloxane carrying a reactive Si-H bond at each silicon in place of the methyl groups of D4. Supplied as a monomer for ring-opening polymerization and as a crosslinker or modifier for hydride-functional silicone fluids and liquid silicone rubber.
Product Code
D4H
2,4,6,8-Tetramethylcyclotetrasiloxane (D4H)
CAS Number
2370-88-9
EINECS
219-137-4
Description
Synonyms
Key applications
- Crosslinker for addition-cure liquid silicone rubber
- Ring-opening polymerization to hydride-functional silicone fluids
- Modified silicone oil synthesis
Characteristics
| Family | Cyclic Siloxanes |
|---|---|
| Functionality | Si-H (hydride) |
| Molecular formula | C4H16O4Si4 |
| Molecular weight | 240.51 g/mol |
| Appearance | Colorless liquid with an odor like ether |