Description

Poly(Cyanopropylmethylsiloxane) is a specialized organosilicon polymer featuring cyano-functional side chains. This unique structure provides excellent solvating power for polar compounds and is a key intermediate for synthesizing advanced silicone materials. It is essential for manufacturers in the chromatography, specialty polymer, and electronics industries seeking high-performance functional fluids and stationary phases. CAS No. 67762-86-1.

Application

• Stationary phase for Gas Chromatography (GC) columns, particularly for separating polar analytes.
• Intermediate in the synthesis of high-refractive-index optical silicones and other specialty polymers.
• Functional fluid or additive in specialty lubricants and release agents requiring polar compatibility.
• Raw material for producing surface-modifying coatings and adhesives with tailored surface energy.
• Solvent or processing aid in electronics encapsulation and potting compounds.
• Base polymer for creating ion-selective membranes and sensor materials.

Basic Information

Product Name	Poly(Cyanopropylmethylsiloxane)
CAS No.	67762-86-1
Molecular Formula	(C7H13NOSi)n
Molecular Weight	Varies (Polymer)
Synonyms	Cyanopropylmethyl Silicone; Cyanopropyl Methyl Polysiloxane; Poly[(3-cyanopropyl)methylsiloxane]; OV-225 (GC phase); SP-2340 (GC phase); CPSil 43; CPSil 5; CPSil 8CB
EINECS	Contact for details

Quality Control

Our Poly(Cyanopropylmethylsiloxane) is manufactured under a rigorous quality management system. Each batch is characterized for critical parameters including viscosity, refractive index, and cyano content to ensure batch-to-batch consistency for your formulations. Certificates of Analysis (COA) detailing these specifications are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are sealed after use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Viscosity (25°C)	Specify grade (e.g., 500 - 50,000 cSt)
Refractive Index (n20D)	1.43 - 1.45
Cyanopropyl Content	Specify grade (Typical range: 25-100%)
Water Content (KF)	< 0.1%

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