Description

Vinylmethylsiloxane Homopolymer is a reactive organosilicon polymer featuring vinyl and methyl functional groups along its siloxane backbone. This unique structure provides a versatile platform for cross-linking and modification, making it a valuable intermediate in advanced material synthesis. It is primarily utilized by manufacturers in the silicone rubber, specialty coatings, and adhesives industries seeking to enhance product flexibility, thermal stability, and adhesion properties.

Application

• Key intermediate in the production of High-Consistency Rubber (HCR) and Liquid Silicone Rubber (LSR) for automotive and medical components.
• Cross-linking agent or modifier in silicone-based release coatings and pressure-sensitive adhesives.
• Building block for synthesizing custom silicone resins and copolymers with tailored properties.
• Used in the formulation of encapsulants and potting compounds for electronics protection.
• Raw material for creating water-repellent and anti-fouling surface treatments.
• Component in UV-curable silicone systems for rapid prototyping and coatings.

Basic Information

Product Name	Vinylmethylsiloxane Homopolymer
CAS No.	131298-48-1
Molecular Formula	(C3H8OSi)n
Molecular Weight	Variable (Polymer)
Synonyms	Poly(vinylmethylsiloxane); Poly(methylvinylsiloxane); Vinylmethylsiloxane polymer; Methylvinylsiloxane homopolymer; PMVS; Vinyl-terminated polydimethylsiloxane (vinyl-PDMS analog); Poly[(methyl)(vinyl)siloxane]; Vinylmethyl polysiloxane
EINECS	Contact for details

Quality Control

Our Vinylmethylsiloxane Homopolymer is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in vinyl content, viscosity, and molecular weight distribution. Certificates of Analysis (COA) detailing key specifications are provided with every shipment to guarantee compliance with your formulation requirements.

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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed after opening to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow viscous liquid
Identification (IR)	Complies
Viscosity (25°C)	Specify grade
Vinyl Content (mol%)	Specify grade
Volatile Matter	≤ 1.0%
Water Content (KF)	≤ 0.1%

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