Description

Vinyl Terminated Poly-Phenylmethylsiloxane is a specialized organosilicon polymer featuring reactive vinyl groups at its chain ends. This structure is critical for enabling cross-linking and copolymerization reactions, forming highly durable and thermally stable silicone networks. It is essential for manufacturers in the advanced materials sector seeking to enhance the performance and longevity of their products under demanding conditions.

Application

• As a key reactive intermediate in the synthesis of high-performance silicone resins and elastomers.
• As a cross-linking agent or modifier in heat-curable silicone rubber formulations for improved mechanical strength.
• In the production of release coatings and pressure-sensitive adhesives requiring high thermal and chemical resistance.
• For formulating protective coatings and encapsulants in electronics and aerospace applications.
• As a component in the manufacture of silicone-based potting compounds and sealants.
• In the development of specialty lubricants and greases for high-temperature environments.
• For research and development of novel silicone copolymers and hybrid materials.

Basic Information

Item	Detail
Product Name	Vinyl Terminated Poly-Phenylmethylsiloxane
CAS No.	225927-21-9
Molecular Formula	Contact for details
Molecular Weight	Varies by grade (Contact for details)
Synonyms	Poly(methylphenylsiloxane), vinyl terminated; Vinyl-terminated methylphenyl polysiloxane; Vinylphenylmethylsiloxane homopolymer; Vinyl-Phenylmethylsiloxane copolymer; PMPS, vinyl terminated; Phenylmethylsiloxane-dimethylsiloxane copolymer, vinyl terminated; Silicone fluid, vinylphenylmethyl-; Reactive vinyl silicone oil (phenyl-containing)
EINECS	Contact for details

Quality Control

Our Vinyl Terminated Poly-Phenylmethylsiloxane is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity, viscosity, and vinyl content. Comprehensive Certificates of Analysis (COA) documenting key specifications 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, and well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under recommended conditions, the product is stable for extended periods.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Complies
Viscosity (25°C)	Specification available upon request
Vinyl Content	Specification available upon request
Phenyl Content	Specification available upon request
Volatile Matter	≤ 1.0% (Typical)

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