Description

Poly(Dimethylsiloxane Bis[[3-[(2-Aminoethyl)Amino]Propyl]Dimethoxysily] Ether) is a specialized, multi-functional organosilicon compound featuring a polydimethylsiloxane backbone terminated with aminoalkylalkoxysilane groups. This unique structure provides exceptional reactivity and compatibility, making it a crucial coupling agent and adhesion promoter in advanced material formulations. It is essential for manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in the production of composite materials and surface treatments, where durable bonding and enhanced material performance are required.

Application

• As a coupling agent and adhesion promoter in epoxy, polyurethane, and silicone-based coatings and adhesives.
• For surface modification of inorganic fillers (e.g., silica, glass fibers) to improve dispersion and interfacial bonding in polymer composites.
• In the formulation of high-performance sealants and elastomers to enhance mechanical properties and environmental resistance.
• As a key intermediate in the synthesis of specialized silicone polymers and block copolymers.
• For primer applications on metal, glass, or plastic substrates to improve coating adhesion and corrosion protection.
• In the development of release coatings and pressure-sensitive adhesives where controlled surface energy is critical.

Basic Information

Product Name	Poly(Dimethylsiloxane Bis[[3-[(2-Aminoethyl)Amino]Propyl]Dimethoxysily] Ether)
CAS No.	159791-74-9
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Poly[dimethylsiloxane-co-[3-[(2-aminoethyl)amino]propyl]methylsiloxane], α,ω-Bis[3-[(2-aminoethyl)amino]propyl]dimethoxysilyl terminated polydimethylsiloxane; Aminoalkyl-functional polysiloxane; Amino-terminated polydimethylsiloxane (ATPS); Silane-terminated polyether with amino groups; Aminoalkyl alkoxysilane terminated PDMS; JEFFAMINE®-Silane (related trade); Diamino-functional silicone fluid
EINECS	Contact for details

Quality Control

Our production of Poly(Dimethylsiloxane Bis[[3-[(2-Aminoethyl)Amino]Propyl]Dimethoxysily] Ether) adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including assay, viscosity, amine value, and moisture content determination, to ensure consistent performance and purity. Certificates of Analysis (COA) documenting all key parameters are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored under a dry, inert atmosphere (e.g., nitrogen) to prevent degradation. Recommended storage temperature is 2-8°C (36-46°F) for long-term stability. Allow the container to reach room temperature before opening to minimize moisture ingress.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Amino Value)	Contact for details
Viscosity (25°C)	Contact for details
Moisture Content (KF)	< 0.5%
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.