Description

Dimethylamino Terminated Polydimethylsiloxane is a reactive organosilicon polymer featuring terminal dimethylamino groups, which impart unique reactivity and functionality to the classic PDMS backbone. This structure makes it a valuable intermediate and modifier for creating tailored silicone materials with enhanced properties. It is primarily utilized in industries requiring advanced surface modification, release control, and polymer synthesis. Key sectors include coatings, adhesives, sealants, elastomers (CASE), and personal care product formulation.

Application

• As a reactive intermediate in the synthesis of specialty silicone polymers and copolymers.
• Surface modifier and coupling agent to improve adhesion and compatibility in composite materials.
• Key ingredient in the formulation of high-performance release coatings for pressure-sensitive adhesives.
• Additive for paints and coatings to enhance flow, leveling, and surface slip properties.
• Raw material for producing silicone surfactants and foam control agents.
• Modifier for personal care products, such as hair conditioners and skin care formulations, to provide softness and manageability.
• Used in the production of silicone rubbers and elastomers to modify cure characteristics and final properties.
• Potential application as a catalyst or catalyst support in organic synthesis due to its basic amino functionality.

Basic Information

Product Name	Dimethylamino Terminated Polydimethylsiloxane
CAS No.	67762-92-9
Molecular Formula	(C2H7NOSi)n (Variable, based on chain length)
Molecular Weight	Variable (Contact for details on specific viscosity grades)
Synonyms	α,ω-Bis(dimethylamino)polydimethylsiloxane; Aminopropyl Terminated Polydimethylsiloxane (related); PDMS, dimethylamino terminated; Dimethylaminopropyl Terminated PDMS; Silicone fluid, amino functional; Amino silicone fluid; Reactive silicone polymer; Poly(dimethylsiloxane), bis(3-aminopropyl) terminated (related structure); DMA-Terminated Silicone Oil
EINECS	Contact for details

Quality Control

Our Dimethylamino Terminated Polydimethylsiloxane is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent performance, including assessment of amine value, viscosity, and purity. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance protocols.

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 when not in use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Amine Value (meq/g)	Contact for details
Viscosity (25°C, cSt)	Grade dependent (Contact for details)
Specific Gravity (25°C)	~0.97 - 1.00
Refractive Index (n20D)	~1.400 - 1.410
Water Content (KF)	< 0.5%

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