Description

Ethylmethylsiloxane, 2-Phenylpropylmethylsiloxane Copolymer is a specialized organosilicon copolymer engineered to deliver unique performance characteristics. This product matters because it combines the thermal stability and hydrophobicity of siloxanes with the enhanced compatibility and potential refractive index modification imparted by the phenylpropyl groups. It is primarily needed by formulators and manufacturers in the personal care, coatings, and specialty lubricants industries seeking advanced silicone-based performance modifiers.

Application

• Personal Care & Cosmetics: Acts as a premium emollient, glossing agent, and conditioning component in hair care products, sunscreens, and color cosmetics.
• Release Agents & Mold Lubricants: Provides excellent non-stick properties and thermal stability for industrial molding and casting processes.
• Specialty Lubricants & Greases: Used as a base fluid or additive in high-performance lubricants requiring wide temperature range operation and chemical resistance.
• Coatings & Inks: Functions as a flow and leveling agent, slip additive, or modifier to enhance surface properties and durability.
• Adhesives & Sealants: Imparts flexibility, moisture resistance, and adhesion promotion in silicone-modified formulations.
• Plastics & Rubber Processing: Serves as an internal lubricant and processing aid to improve flow and mold release.

Basic Information

Product Name	Ethylmethylsiloxane, 2-Phenylpropylmethylsiloxane Copolymer
CAS No.	68037-77-4
Molecular Formula	(C3H8OSi)x(C10H14OSi)y
Molecular Weight	Varies by copolymer ratio and chain length
Synonyms	Phenylpropylmethylsiloxane-Ethylmethylsiloxane Copolymer; Siloxanes and Silicones, C2-alkyl, C10-alkyl, Me, Ph propyl; Methyl Ethyl Siloxane Phenylpropyl Methyl Siloxane Copolymer; EMS-PPMS Copolymer; Organomodified Siloxane Copolymer; Poly[oxy(ethylmethylsilylene)]-co-[oxy(2-phenylpropylmethylsilylene)]
EINECS	Contact for details

Quality Control

Our production of Ethylmethylsiloxane, 2-Phenylpropylmethylsiloxane Copolymer adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistent performance, including verification of viscosity, refractive index, specific gravity, and copolymer composition. Certificates of Analysis (COA) documenting these parameters are available upon request to support your quality assurance and regulatory compliance needs.

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 acids and incompatible organic solvents. Ensure containers are kept tightly sealed when not in use to prevent contamination and moisture uptake.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Specific Gravity (25°C)	0.95 - 1.05
Refractive Index (n20D)	1.450 - 1.470
Viscosity (25°C, cSt)	50 - 5000 (Grade dependent)
Volatile Content	≤ 2.0%

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