Description

Siloxanes And Silicones, Di-Me, Me 3-Mercaptopropyl, Me Vinyl, Dimethyl3-(1-Oxo-2-Propenyl)Oxypropylsilyloxy-Terminated is a specialized, multi-functional organosilicon compound engineered for advanced material synthesis. This product is valued for its unique combination of mercaptopropyl and vinyl groups, which enable dual-cure mechanisms and robust crosslinking in demanding polymer systems. It is essential for manufacturers in the adhesives, sealants, coatings, and high-performance elastomer industries seeking to enhance material properties such as adhesion, flexibility, and chemical resistance.

Application

• Crosslinking Agent for Silicone Elastomers: Serves as a key component in addition-cure (platinum-catalyzed) and radical-cure systems, providing improved mechanical strength and thermal stability.
• Adhesive & Sealant Formulations: Enhances adhesion to difficult substrates (e.g., metals, plastics, glass) through its dual functional groups, used in automotive, aerospace, and construction sealants.
• UV/Radiation-Curable Coatings: The acryloyloxypropyl functionality allows for efficient polymerization under UV light, making it suitable for protective and decorative coatings.
• Modifier for Epoxy and Polyurethane Systems: Incorporated to increase toughness, flexibility, and moisture resistance in composite materials and potting compounds.
• Release Coatings and Liners: Used in the production of pressure-sensitive adhesives and industrial release films.
• Medical Device Polymers: Employed in the synthesis of biocompatible silicone polymers for specific healthcare applications.

Basic Information

Item	Detail
Product Name	Siloxanes And Silicones, Di-Me, Me 3-Mercaptopropyl, Me Vinyl, Dimethyl3-(1-Oxo-2-Propenyl)Oxypropylsilyloxy-Terminated
CAS No.	104780-69-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	3-Mercaptopropylmethylsiloxane-dimethylsiloxane copolymer, vinyl terminated; Vinyl, Mercaptopropyl Functional Silicone Fluid; Dimethyl, methyl(3-mercaptopropyl), methylvinyl siloxane, 3-acryloxypropyl terminated; Acryloxypropyl Terminated Mercaptopropyl Vinyl Silicone; DMS-V35, SFA35 (Potential trade names); Poly[dimethylsiloxane-co-methyl(3-mercaptopropyl)siloxane-co-methylvinylsiloxane], 3-acryloxypropyl terminated; Multi-functional mercapto-vinyl silicone resin.
EINECS	Contact for details

Quality Control

Our production of this specialty siloxane adheres to strict quality management protocols. Every batch is characterized using advanced analytical techniques including FT-IR, NMR, and GPC to confirm functional group content, molecular weight distribution, and purity. A comprehensive Certificate of Analysis (COA) detailing assay, viscosity, specific gravity, and functional group equivalence is provided with each shipment to ensure consistency and performance in your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C/59-77°F). This material is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen). Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Viscosity (25°C)	Contact for details
Specific Gravity (25°C)	Contact for details
Mercaptopropyl Group Content	Contact for details
Vinyl Group Content	Contact for details
Acryloxypropyl Group Content	Contact for details
Volatile Matter	< 1.0%

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