Description

Siloxanes and Silicones, 3-(2-aminoethyl)aminopropyl methoxy, di-Me, Me methoxy, polymers with 3-(2-aminoethyl)aminopropyl Me silsesquioxanes, 3-(2-aminoethyl)aminopropyldimethoxysilyloxy- and (dimethoxymethylsilyl)oxy-terminated is a specialized amino-functional siloxane polymer, a key member of the organosilicon family designed for advanced material science applications. This compound matters for its unique combination of a reactive amine-terminated siloxane backbone with silsesquioxane cage structures, offering exceptional compatibility, adhesion promotion, and crosslinking capabilities. Industrial R&D and production teams in the coatings, adhesives, sealants, and elastomers (CASE) sectors, as well as composite material manufacturers, require this polymer to develop high-performance, durable products.

Application

• Adhesion Promoter & Coupling Agent: Enhances the bond between organic polymers and inorganic substrates like glass, metals, and minerals in advanced composites and coatings.
• Epoxy & Polyurethane Modifier: Serves as a reactive flexibilizer and toughening agent in high-performance epoxy resins and polyurethane systems, improving impact resistance and thermal stability.
• Silicone Rubber Crosslinker: Functions as a crosslinking agent or chain extender in heat-cured silicone rubber (HCR) and liquid silicone rubber (LSR) formulations.
• Surface Treatment & Primers: Used in formulating primers and treatments for surfaces to improve water repellency, corrosion resistance, and paint adhesion.
• Fiber Sizing & Reinforcement: Applied as a sizing agent for glass or carbon fibers to improve interfacial adhesion and stress transfer in fiber-reinforced plastics (FRP).
• Hybrid Organic-Inorganic Material Synthesis: A crucial precursor for synthesizing advanced hybrid materials, silsesquioxane-based nanocomposites, and sol-gel coatings.

Basic Information

Product Name	Siloxanes and Silicones, 3-(2-aminoethyl)aminopropyl methoxy, di-Me, Me methoxy, polymers with 3-(2-aminoethyl)aminopropyl Me silsesquioxanes, 3-(2-aminoethyl)aminopropyldimethoxysilyloxy- and (dimethoxymethylsilyl)oxy-terminated
CAS No.	183815-50-1
Molecular Formula	Contact for details
Molecular Weight	Contact for details (Polymer with variable chain length)
Synonyms	Amino-functional polysiloxane-silsesquioxane copolymer; N-(2-Aminoethyl)-3-aminopropylmethylsiloxane-dimethylsiloxane copolymer with silsesquioxanes; Aminoethylaminopropyl modified silicone polymer; Diamino-functional silicone copolymer; Amino silicone fluid (reactive); Poly[3-(2-aminoethyl)aminopropylmethylsiloxane-co-dimethylsiloxane]; Aminoalkyl siloxane-silsesquioxane hybrid polymer; Reactive aminosilicone oil
EINECS	Contact for details

Quality Control

Our amino-functional siloxane polymers are manufactured under strict quality management systems to ensure batch-to-batch consistency and performance reliability. Each lot undergoes rigorous analytical testing, including determination of amine value, viscosity, specific gravity, and refractive index. Certificates of Analysis (COA) detailing these specifications are provided with every shipment. Our production adheres to relevant ISO quality standards, and we support our global clients with documentation for REACH compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C / 59-77°F). This product is hygroscopic (moisture-sensitive) and may react with atmospheric moisture and carbon dioxide; ensure containers are sealed under a dry, inert atmosphere (e.g., nitrogen) after each use. Keep away from strong acids and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber viscous liquid
Identification (IR)	Conforms to structure
Amine Value (meq/g)	Contact for details
Viscosity @ 25°C (cSt)	Contact for details
Specific Gravity @ 25°C	Contact for details
Refractive Index @ 25°C	Contact for details
Water Content (KF)	< 0.5%

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