Description

Siloxanes and Silicones, di-Me, Me 3-mercaptopropyl, (methoxydimethylsilyl)oxy- and (trimethylsilyl)oxy-terminated, telomers with 2-(dimethylamino)ethyl methacrylate is a specialized functional silicone polymer engineered for advanced material science applications. This compound matters for its unique combination of siloxane backbone flexibility, thiol (-SH) functionality from the mercaptopropyl groups, and cationic amine character from the methacrylate telomer, enabling precise surface modification and cross-linking. Industrial R&D and production teams in the coatings, adhesives, and advanced composites sectors require this material to develop products with enhanced adhesion, tailored surface energy, and specific reactive sites.

Application

• Surface Modification Agent: Used to functionalize inorganic fillers (e.g., silica, glass) and nanoparticles to improve dispersion and interfacial bonding in polymer composites.
• Adhesion Promoter: Enhances the bond strength between organic polymers (like epoxies or acrylics) and difficult-to-adhere substrates such as metals, glass, and plastics.
• Cross-linking Co-monomer: Serves as a reactive component in UV-curable or redox-initiated coating and ink formulations, contributing to thiol-ene click chemistry.
• Release Coating Modifier: Imparts controlled release properties in silicone-based paper and film coatings while allowing for subsequent printing or adhesion.
• Antistatic Additive: The cationic amine groups provide static dissipation properties for applications in electronics packaging and fiber treatments.
• Biomaterial Functionalization: Employed in R&D for modifying biomedical device surfaces to promote specific cellular interactions or reduce fouling.

Basic Information

Product Name	Siloxanes and Silicones, di-Me, Me 3-mercaptopropyl, (methoxydimethylsilyl)oxy- and (trimethylsilyl)oxy-terminated, telomers with 2-(dimethylamino)ethyl methacrylate
CAS No.	306281-41-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details (Variable polymer)
Synonyms	3-Mercaptopropylmethylsiloxane-dimethylsiloxane copolymer, methoxy/trimethylsilyl terminated, telomers with DMAEMA; Dimethyl, methyl 3-mercaptopropyl siloxane, (methoxydimethylsilyl)oxy- and (trimethylsilyl)oxy-terminated, copolymer with 2-(dimethylamino)ethyl methacrylate; Mercapto-functional silicone copolymer with DMAEMA; Thiol-functional polydimethylsiloxane copolymer; Aminofunctional mercaptosiloxane copolymer; DMAEMA-modified mercaptopropylmethylsiloxane; Reactive silicone telomer
EINECS	Contact for details

Quality Control

Our production of this advanced silicone copolymer adheres to rigorous quality testing protocols to ensure batch-to-batch consistency and performance reliability. While specific grades are tailored to application needs, standard quality parameters include functional group assay (thiol and amine content), viscosity, and refractive index. A comprehensive Certificate of Analysis (COA) detailing all relevant specifications is provided with each shipment.

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). Keep away from heat, sparks, and open flame. Due to the light-sensitive and potentially reactive nature of the thiol and amine groups, prolonged exposure to air and light should be minimized.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Viscosity (25°C)	Contact for details
Thiol Content	Contact for details
Amino Content	Contact for details
Non-volatile Matter	> 95%
Refractive Index (n20D)	Contact for details
Specific Gravity (25°C)	Contact for details

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