Carbinol (Hydroxyl) Terminated Polydimethylsiloxane
Versatile Surfactant: Its molecular structure integrates both hydrophobic siloxane and hydrophilic polyoxyethylene segments, enabling effective performance as a surfactant and emulsifier across multiple industrial applications.
Thermal Stability: The product exhibits outstanding thermal stability, allowing consistent functionality even under high-temperature conditions.
Surface Activity: It demonstrates notable surface activity, which improves performance in areas such as cosmetics, coatings, and textile treatments.
Moisture Resistance: To preserve integrity in humid conditions, the material is packaged in sealed containers that minimize moisture uptake and ensure suitability for moisture-sensitive applications.
Carbinol (Hydroxyl) Terminated Polydimethylsiloxane (CAS 67674-67-3) is an organosilicon compound featuring integrated siloxane and polyoxyethylene segments, resulting in a versatile amphiphilic structure. It typically presents as a colorless to pale yellow viscous liquid, with a molecular weight ranging from approximately 222.51 to 324.64 g/mol, depending on the polyoxyethylene chain length. The molecule effectively merges the hydrophobic characteristics of heptamethyltrisiloxane with the hydrophilic attributes of polyoxyethylene, rendering it highly efficient as a surfactant and emulsifier.
This compound finds widespread application across industries such as cosmetics, coatings, and textiles. Owing to its exceptional surface activity, thermal stability, and compatibility with organic systems, it serves a critical function in the synthesis of silicone-polyether copolymers. It is generally supplied at 98–99% purity grades and packaged in hermetically sealed containers to ensure product integrity and prevent moisture ingress, making it well-suited for use in even highly sensitive industrial processes.
Parameters
Melting point | 0°C |
Boiling point | 0°C |
density | 1,02 g/cm3 |
refractive index | 1.5580 |
Fp | 0°C |
Specific Gravity | 1.02 |
Hydrolytic Sensitivity | 4: no reaction with water under neutral conditions |
EPA Substance Registry System | Poly(oxy-1,2-ethanediyl),.alpha.-[3-[1,3,3,3-tetramethyl-1-[(trimethylsilyl)oxy]disiloxanyl]propyl]-.omega.-hydroxy- (67674-67-3) |
