Description
Linear disiloxane with a vinyl group on each terminal silicon. Its vinyl content makes it an effective inhibitor for controlling working time in platinum-catalyzed addition-cure silicone systems, and it is also the ligand in the platinum complex used to drive hydrosilylation cure.
Synonyms
silicone oilsilicone fluidPDMSpolydimethylsiloxaneDisiloxane, 1,3-diethenyl-1,1,3,3-tetramethyl-1,3-Divinyl-1,1,3,3-tetramethyldisiloxane
Key applications
- Cure inhibitor for platinum addition-cure RTV-2 silicone
- Ligand for platinum hydrosilylation catalysts
- End-capping agent for vinyl silicone fluids and resins
Characteristics
| Family | Linear Siloxanes |
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| Functionality | Vinyl |
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| Molecular formula | C8H18OSi2 |
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| Molecular weight | 186.40 g/mol |
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| Appearance | Colorless liquid |
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