Description

(Carbinol Functional)Methylsiloxane-Dimethylsiloxane Copolymer is a specialized organosilicon compound featuring reactive carbinol (hydroxyl) groups pendant to a siloxane backbone. This unique structure provides a versatile platform for chemical modification, enabling the creation of custom silicone polymers with tailored properties for advanced industrial applications. It is essential for formulators and manufacturers in sectors requiring silicone-based materials with enhanced compatibility, adhesion, or crosslinking capabilities.

Application

• As a reactive intermediate or modifier in the synthesis of custom silicone resins and elastomers.
• Used in the formulation of release coatings, where the carbinol functionality improves adhesion to substrates.
• Employed as a compatibilizer or coupling agent in composite materials and polymer blends.
• Key ingredient in the production of specialty silicone surfactants and foam control agents.
• Utilized in the development of pressure-sensitive adhesives (PSAs) and sealants with modified surface properties.
• Acts as a precursor for crosslinkable silicone coatings and encapsulants in electronics.
• Applied in personal care and cosmetic formulations as a conditioning agent and emollient.
• Used in textile finishing to impart softness, water repellency, and durable press properties.

Basic Information

Product Name	(Carbinol Functional)Methylsiloxane-Dimethylsiloxane Copolymer
CAS No.	68957-00-6
Molecular Formula	Contact for details
Molecular Weight	Varies by grade
Synonyms	Hydroxy-Functional Polydimethylsiloxane; Carbinol-Terminated PDMS; Poly(dimethylsiloxane-co-methylhydrogensiloxane), hydroxy-terminated; Siloxanes and Silicones, di-Me, hydroxy-terminated; Hydroxylalkyl modified silicone; Reactive silicone polyol; Silicone glycol copolymer; Polydimethylsiloxane with pendant hydroxyl groups
EINECS	Contact for details

Quality Control

Our (Carbinol Functional)Methylsiloxane-Dimethylsiloxane Copolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in hydroxyl value, viscosity, molecular weight distribution, and purity. Certificates of Analysis (COA) documenting these parameters 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, well-ventilated area at room temperature (15-25°C). Keep away from strong alkalis and incompatible organic solvents. Under these conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Hydroxyl Value (mg KOH/g)	As per grade
Viscosity (25°C, cSt)	As per grade
Specific Gravity (25°C)	0.95 - 1.05
Refractive Index (25°C)	1.400 - 1.410
Water Content (%)	≤ 0.5
Assay (by Titration)	≥ 95.0%

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