Description

Polydimethylsiloxane, Carboxydecyldimethyl Terminated is a specialized organosilicon polymer featuring reactive carboxylic acid end groups on a decyl chain, offering unique surface-active and compatibilizing properties. This functionalized silicone is engineered to act as a versatile intermediate, enabling covalent bonding to other materials or serving as a reactive modifier to impart hydrophobicity, lubricity, and release characteristics. It is essential for formulators and manufacturers in the personal care, coatings, and advanced materials sectors seeking to enhance product performance through tailored silicone chemistry.

Application

• Personal Care & Cosmetics: Used as a conditioning agent, emulsifier, or rheology modifier in hair care products, skin creams, and sunscreens to improve texture and spreadability.
• Coatings & Inks: Functions as a surface modifier and flow control additive to enhance slip, mar resistance, and substrate wetting in industrial and protective coatings.
• Adhesives & Sealants: Acts as a reactive plasticizer or compatibilizer to adjust adhesion/cohesion balance and improve flexibility and moisture resistance.
• Textile & Fiber Treatment: Imparts durable water repellency (DWR), softness, and lubricity to synthetic and natural fibers.
• Polymer Modification: Serves as a functional additive or compatibilizer in polymer blends and composites to modify surface energy and interfacial properties.
• Release Agents: Formulated into non-stick coatings for industrial molding processes (e.g., rubber, plastics, polyurethane).

Basic Information

Product Name	Polydimethylsiloxane, Carboxydecyldimethyl Terminated
CAS No.	58130-04-4
Molecular Formula	Contact for details
Molecular Weight	Varies by chain length (n)
Synonyms	Carboxydecyl Terminated Polydimethylsiloxane; Carboxydecyldimethylsilyl Terminated PDMS; Silicone Carboxylic Acid; α-(Carboxydecyl)-ω-(trimethylsilyl)polydimethylsiloxane; Poly(dimethylsiloxane), carboxydecyl terminated; Carboxy-functional silicone; Carboxydecyl Dimethyl Siloxane Homopolymer; Reactive Silicone Fluid
EINECS	Contact for details

Quality Control

Our Polydimethylsiloxane, Carboxydecyldimethyl Terminated is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, including measurement of acid value, viscosity, and silicon content. A comprehensive Certificate of Analysis (COA) detailing purity and key specifications is provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent moisture absorption, which can affect product performance. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Acid Value	Contact for details
Viscosity (25°C)	Contact for details
Specific Gravity (25°C)	Contact for details
Refractive Index (25°C)	Contact for details
Water Content	< 0.5%

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