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3-[[3-hydroxypropyl(dimethyl)silyl]oxy-dimethylsilyl]propan-1-ol: Properties, Applications, and Synthesis

INNO Specialty Chemicals, based in China, is a leading manufacturer and supplier of 3-[[3-hydroxypropyl(dimethyl)silyl]oxy-dimethylsilyl]propan-1-ol, also known as 1,3-Bis(3-hydroxypropyl)tetramethyldisilane, 1,3-Bis(hydroxypropyl)tetramethyldisiloxane, and other synonyms. This article will explore the properties, applications, and synthesis of this important compound.

Properties

3-[[3-hydroxypropyl(dimethyl)silyl]oxy-dimethylsilyl]propan-1-ol is a clear, colorless liquid with a molecular weight of 254.48 g/mol. It has a boiling point of 211-213°C, a flash point of 92°C, and a density of 0.943 g/mL. The compound is soluble in water, alcohols, and ether, but insoluble in hydrocarbons.

Applications

3-[[3-hydroxypropyl(dimethyl)silyl]oxy-dimethylsilyl]propan-1-ol has a variety of applications in different industries. One of the main uses of this compound is as a coupling agent in the production of silicone rubber. It is added to the rubber formulation to improve the adhesion between the rubber and other surfaces, such as metals, plastics, and fabrics. This results in improved mechanical properties and durability of the rubber products.

Another application of 3-[[3-hydroxypropyl(dimethyl)silyl]oxy-dimethylsilyl]propan-1-ol is as a cross-linking agent in the production of silicone resins. It is added to the resin formulation to improve the thermal stability, water resistance, and electrical insulation properties of the resins. This makes them suitable for use in coatings, adhesives, and electrical encapsulants.

The compound is also used as a surfactant in the production of emulsions and foams. It helps to stabilize the emulsions and foams, and improve their properties such as viscosity, stability, and wetting ability. This makes them useful in a variety of applications, such as in cosmetics, personal care products, and food processing.

Synthesis

3-[[3-hydroxypropyl(dimethyl)silyl]oxy-dimethylsilyl]propan-1-ol is synthesized by the reaction of tetramethyldisiloxane with 3-chloropropylmethyldimethoxysilane in the presence of a base, such as potassium hydroxide or sodium hydroxide. The reaction proceeds through a nucleophilic substitution mechanism, where the chlorine atom is replaced by a hydroxypropyl group. The resulting product is then purified by distillation or chromatography.

Conclusion

3-[[3-hydroxypropyl(dimethyl)silyl]oxy-dimethylsilyl]propan-1-ol is an important compound with a wide range of applications in different industries. Its properties, such as high boiling point, good solubility, and reactivity, make it suitable for use as a coupling agent, cross-linking agent, and surfactant. INNO Specialty Chemicals, as a leading manufacturer and supplier of this compound, provides high-quality products and services to meet the needs of their customers.

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