Description

Alpha,ω-Di(Tridecyl)Dimethylsiloxane Polymer is a high-molecular-weight organosilicon compound, specifically a linear polydimethylsiloxane (PDMS) with tridecyl end groups. This unique structure provides exceptional lubricity, hydrophobicity, and thermal stability, making it a superior functional fluid and additive. It is essential for formulators and manufacturers seeking to enhance the performance and longevity of industrial lubricants, release agents, and personal care products. Key industries that rely on this polymer include advanced manufacturing, plastics, and specialty chemicals.

Application

• High-Performance Lubricant Base Fluid: Used in specialty greases and high-temperature lubricants for its excellent viscosity-temperature characteristics and film strength.
• Mold Release Agent: Acts as an effective internal or external release agent in plastic, rubber, and composite manufacturing due to its non-stick properties.
• Personal Care & Cosmetic Ingredient: Functions as an emollient and conditioning agent in hair care and skincare formulations, providing a smooth, non-greasy feel.
• Waterproofing Additive: Imparts water repellency to textiles, leather, and construction materials.
• Defoamer Component: Serves as a key ingredient in silicone-based defoamers for industrial processes, including wastewater treatment and pulp/paper production.
• Plasticizer & Flow Aid: Improves the processing and flexibility of polymers and elastomers.
• Dielectric Fluid: Suitable for use in specific electrical or electronic applications requiring stable, non-conductive fluids.
• Surface Treatment for Fillers: Used to hydrophobically treat silica and other mineral fillers to improve dispersion in polymer matrices.

Basic Information

Product Name	Alpha,ω-Di(Tridecyl)Dimethylsiloxane Polymer
CAS No.	67762-91-8
Molecular Formula	(C2H6OSi)n with C13H27 end groups
Molecular Weight	Varies by polymer chain length (n). Contact for details.
Synonyms	Di(tridecyl)-terminated polydimethylsiloxane; Tridecyl-terminated PDMS; Poly[oxy(dimethylsilylene)], α,ω-di(tridecyl)-terminated; Dimethylsiloxane, tridecyl-terminated; Silicone fluid, tridecyl end-blocked; PDMS, tridecyl end-capped; Bis(tridecyl)dimethylpolysiloxane; Linear tridecyl silicone oil
EINECS	Contact for details.

Quality Control

Our Alpha,ω-Di(Tridecyl)Dimethylsiloxane Polymer is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency in viscosity, molecular weight distribution, purity, and functional performance. Certificates of Analysis (COA) documenting key parameters are available upon request. We can support compliance requirements for various industrial standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources to maintain product integrity.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Viscosity (25°C)	Specified grade dependent (cSt)
Specific Gravity (25°C)	0.92 - 0.98
Refractive Index (25°C)	1.400 - 1.410
Assay (by GPC/SEC)	> 95% (Polydimethylsiloxane content)
Water Content	< 0.1% (Karl Fischer)
Acidity/Alkalinity	Neutral

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