Description

Siloxanes And Silicones, Di-Ph, Me Ph, Polymers With Me Ph Silsesquioxanes is a specialized class of phenyl-modified silicone polymers and silsesquioxane hybrids, identified by CAS No. 68037-81-0. This material is engineered to deliver enhanced thermal stability, refractive index, and compatibility with organic systems compared to standard methyl silicones. It is a critical performance additive for industries requiring high-temperature resistance and optical clarity. Key sectors that utilize this advanced polymer include high-performance coatings, advanced electronics encapsulation, and specialty elastomers.

Application

• High-Temperature Resistant Coatings: Used as a binder or additive in protective coatings for aerospace, automotive, and industrial equipment to improve thermal stability and weatherability.
• LED Encapsulation & Optical Lenses: Serves as a transparent encapsulant for LEDs and a component in optical lenses due to its high refractive index and clarity.
• Specialty Silicone Elastomers: Imparts improved mechanical strength and heat resistance to silicone rubbers used in gaskets, seals, and damping components.
• Electronic Potting & Underfill Compounds: Provides excellent dielectric properties and stress relief in potting compounds for semiconductors and microelectronics.
• Release Coatings & Molding Agents: Formulated into non-stick release coatings for industrial molding and composite fabrication processes.
• Adhesives & Sealants: Enhances the flexibility, adhesion, and environmental resistance of high-performance adhesives and sealants.

Basic Information

Product Name	Siloxanes And Silicones, Di-Ph, Me Ph, Polymers With Me Ph Silsesquioxanes
CAS No.	68037-81-0
Molecular Formula	Contact for details
Molecular Weight	Varies by polymer chain length
Synonyms	Phenylmethyl polysiloxane; Phenyl Methyl Silicone Resin; Polydiphenylsiloxane-co-polymethylphenylsiloxane; Phenyl Silsesquioxane Siloxane Copolymer; Methyl Phenyl Siloxane Polymer; Phenyl Modified Silicone Oil; Aromatic Silicone Fluid; Diphenyl Siloxane-Methyl Phenyl Siloxane Copolymer
EINECS	Contact for details

Quality Control

Our production of phenyl-modified silicone polymers adheres to stringent quality management protocols. Each batch undergoes comprehensive analysis to ensure consistency in key parameters such as viscosity, phenyl content, and thermal properties. Certificates of Analysis (COA) documenting purity, identity, and physical specifications are available upon request. We are committed to meeting the quality standards required for advanced industrial and electronic applications.

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 organic solvents. For long-term storage under optimal conditions, consider an inert atmosphere to prevent potential oxidation or viscosity changes.

Specification

Item	Specification
Appearance	Clear, viscous liquid to resinous solid
Identification (IR)	Conforms to structure
Phenyl Content	As per grade requirement
Viscosity (25°C)	Specified range
Refractive Index (n20D)	1.50 - 1.58
Specific Gravity (25°C)	1.00 - 1.10
Volatile Content	< 2.0%

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