Description

Dimethylsiloxane, Aminopropylsilylidyne- CAS NO 67923-10-8 is a specialized organosilicon compound featuring an aminopropyl functional group within a dimethylsiloxane backbone. This unique structure provides a valuable combination of silicone-based properties with the reactivity of a primary amine, making it a crucial intermediate for advanced material synthesis. It is essential for manufacturers in the coatings, adhesives, and specialty polymer industries seeking to enhance product performance through surface modification and cross-linking. Its functionality enables the creation of materials with improved adhesion, compatibility, and durability.

Application

• As a key coupling agent and surface modifier in mineral-filled composites and fiber-reinforced plastics.
• Intermediate for synthesizing silicone polyether copolymers and other functional silicone fluids used in coatings and release agents.
• Surface treatment agent for silica, glass fibers, and other inorganic fillers to improve dispersion and interfacial adhesion in polymer matrices.
• Precursor for manufacturing amino-functional silicone resins and elastomers with enhanced mechanical and thermal properties.
• Modifier in epoxy and polyurethane systems to increase flexibility, impact resistance, and adhesion to difficult substrates.
• Used in the formulation of personal care ingredients and hair conditioning agents, where amino silicones provide superior conditioning benefits.
• Component in the production of pressure-sensitive adhesives (PSAs) and sealants to modify rheology and adhesion characteristics.

Basic Information

Product Name	Dimethylsiloxane, Aminopropylsilylidyne- CAS NO 67923-10-8
CAS No.	67923-10-8
Molecular Formula	CnH2n+3NOmSim (Polymeric)
Molecular Weight	Varies by chain length (n, m). Contact for details.
Synonyms	Aminopropyl Terminated Polydimethylsiloxane; Amino-Functional Silicone Fluid; α,ω-Aminopropyl Polydimethylsiloxane; Aminopropylsilylidyne Dimethylsiloxane; Amino PDMS; Amino Silicone Oil; 3-Aminopropyl Dimethylsiloxy-Terminated Polydimethylsiloxane; Poly(dimethylsiloxane), aminopropylsilylidyne-
EINECS	Contact for details.

Quality Control

Our Dimethylsiloxane, Aminopropylsilylidyne- is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency in amine value, viscosity, and purity. Certificates of Analysis (COA) detailing key specifications such as amine equivalence, molecular weight distribution, and volatile content are available upon request. We are committed to meeting the stringent requirements of industrial and specialty chemical applications.

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). This product is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and degradation. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Amino Value (meq/g)	As per grade (e.g., 0.2 - 1.0)
Viscosity @ 25°C (cSt)	As per grade (e.g., 100 - 5000)
Specific Gravity @ 25°C	0.95 - 1.02
Refractive Index @ 25°C	1.400 - 1.410
Volatile Content (%)	≤ 2.0
Water Content (KF)	≤ 0.5%

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