Polydimethylsiloxanes with hydrolyzable functionality react with water to produce silanol-terminated fluids of equivalent or higher degrees of polymerization. Polymers with this category of reactivity are almost never directly hydrolyzed. Chlorine- and dimethylamine-terminated fluids are usually employed in ordered chain extension and block polymer synthesis, particularly urethanes and polycarbonates. Acetoxy- and dimethylamine-terminated fluids can also be used as unfilled bases for rapid-cure RTVs.
Chlorine-Terminated Nonafluorohexylmethylsiloxane-Dimethylsiloxane Copolymers, CAS: [908858-79-7], TSCA-L
| Product Code | Viscosity (cSt) | Molecular Weight | Density |
|---|---|---|---|
| FMS-K11 | 5-15 | 500-1,000 | 1.46 |
Diacetoxymethyl Terminated PolyDimethylsiloxanes, CAS: [158465-54-4], TSCA
| Product Code | Viscosity (cSt) | Molecular Weight | Density |
|---|---|---|---|
| DMS-D33 | 2,000-4,000 | 36,000 | 0.99 |
Ethoxy-Terminated Polydimethylsiloxanes, CAS: [70851-25-1], TSCA
| Product Code | Viscosity (cSt) | Molecular Weight | Density |
|---|---|---|---|
| DMS-XE11 | 5-10 | 800-900 | 0.94 |
Triethoxysilylethyl-Terminated Polydimethylsiloxanes, CAS: [195158-81-7]/[210548-76-8]
| Product Code | Viscosity (cSt) | Molecular Weight | Density |
|---|---|---|---|
| DMS-XT11 | 8-12 | 600-900 | 0.96 |
Methoxy-Terminated Polydimethylsiloxane, CAS: [68951-97-3], TSCA
| Product Code | Viscosity (cSt) | Molecular Weight | Density |
|---|---|---|---|
| DMS-XM11 | 5-12 | 900-1,000 | 0.94 |
Methoxymethylsiloxane-Dimethylsiloxane Copolymer, CAS: [68440-84-6], TSCA
| Product Code | Viscosity (cSt) | Mole % Methoxymethylsiloxane | Density | Comments |
|---|---|---|---|---|
| XMS-5025.2 | 2-5 | 10-20 | 0.83 | 20% in isopropanol |