Description

Dimethylsiloxane/3-Mercaptopropyl Silsesquioxanes is a specialized organosilicon hybrid material that combines the properties of silicone and mercapto-functional silsesquioxanes. This compound is valued for its ability to act as a reactive intermediate or crosslinking agent, offering enhanced thermal stability and compatibility with various polymer matrices. It is primarily sought by manufacturers in the advanced materials, coatings, and adhesives industries for developing high-performance, durable products.

Application

• As a key crosslinking agent or chain transfer agent in the synthesis of specialty silicone rubbers and high-temperature elastomers.
• As a surface modifier or adhesion promoter in advanced coating formulations to improve bonding to difficult substrates.
• As a reactive intermediate for the preparation of functionalized silsesquioxane cages used in hybrid organic-inorganic materials.
• In the formulation of sealants and adhesives requiring improved thermal and chemical resistance.
• As a component in resin systems for electronics encapsulation or potting compounds.
• For research and development of novel polymer composites with tailored mechanical and surface properties.

Basic Information

Product Name	Dimethylsiloxane/3-Mercaptopropyl Silsesquioxanes
CAS No.	68554-63-2
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	3-Mercaptopropylsilsesquioxane-dimethylsiloxane copolymer; Mercapto-functionalized POSS-dimethylsiloxane; Poly[(3-mercaptopropyl)silsesquioxane-co-dimethylsiloxane]; Thiol-functional silsesquioxane-siloxane hybrid; SH-POSS siloxane; Reactive silicone-POSS hybrid; Organosilicon thiol copolymer
EINECS	Contact for details

Quality Control

Our Dimethylsiloxane/3-Mercaptopropyl Silsesquioxanes is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in functional group content, viscosity, and purity. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized; for long-term storage, maintaining an inert atmosphere (e.g., under nitrogen) is recommended to preserve its reactive thiol functionality. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Thiol Content	Contact for details
Viscosity (25°C)	Contact for details
Purity (Assay)	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.