Description

[Bis(3-Aminopropyl)]Polydimethylsiloxane is a specialized organosilicon compound featuring a polydimethylsiloxane (PDMS) backbone terminated with primary amine groups. This unique structure provides a versatile platform for chemical modification, acting as a reactive intermediate and compatibilizer in advanced material synthesis. It is essential for manufacturers in the personal care, coatings, adhesives, and specialty polymer industries seeking to enhance product performance through silicone-organic hybrid technology.

Application

• Reactive Intermediate for Silicone-Modified Polymers: Used in the synthesis of polyamides, polyimides, and polyurethanes to impart flexibility, thermal stability, and surface activity.
• Surface Modifier and Coupling Agent: Improves adhesion between organic resins and inorganic substrates (e.g., glass, metals, minerals) in coatings, sealants, and composite materials.
• Personal Care Ingredient: Functions as a conditioning agent and emulsifier in hair care and skincare formulations, providing softness and improved manageability.
• Textile and Fiber Treatment: Imparts durable softness, hydrophobicity, and anti-static properties to synthetic and natural fibers.
• Epoxy Resin Modifier: Enhances the toughness, flexibility, and impact resistance of cured epoxy systems for electronic encapsulants and structural adhesives.
• Release Agent and Lubricant Precursor: Serves as a building block for creating non-stick coatings and high-performance lubricants.

Basic Information

Product Name	[Bis(3-Aminopropyl)]Polydimethylsiloxane
CAS No.	97917-34-5
Molecular Formula	CnH2n+6NOmSim (Polymeric)
Molecular Weight	Varies by chain length (n)
Synonyms	Aminopropyl Terminated Polydimethylsiloxane; α,ω-Bis(3-aminopropyl)polydimethylsiloxane; Amino-Functional Silicone Fluid; Diaminopropyl Terminated PDMS; Bis(aminopropyl) Polydimethylsiloxane; 3-Aminopropyl Silicone; Amino Silicone Oil; Poly(dimethylsiloxane), bis(3-aminopropyl) terminated
EINECS	Contact for details

Quality Control

Our [Bis(3-Aminopropyl)]Polydimethylsiloxane is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent amine value, viscosity, and purity, meeting the specifications required for industrial and specialty chemical applications. Certificates of Analysis (COA) documenting key parameters are available upon request.

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 product is hygroscopic (moisture-sensitive); containers must be kept tightly sealed to prevent absorption of atmospheric moisture and carbon dioxide, which can affect reactivity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Amine Value (meq/g)	Contact for details
Viscosity @ 25°C (cSt)	Contact for details
Water Content (KF)	< 0.5%
Specific Gravity @ 25°C	0.95 - 1.05
Refractive Index @ 25°C	1.400 - 1.450

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