Description

Polymethylphenyl Silane is a versatile organosilicon compound characterized by a backbone of silicon atoms bonded to both methyl and phenyl groups. This unique structure provides a valuable combination of thermal stability, hydrophobicity, and reactivity, making it a key intermediate in advanced material synthesis. It is essential for manufacturers in the electronics, specialty polymers, and coatings industries seeking to enhance product performance. Our supply of Polymethylphenyl Silane CAS NO 76188-55-1 is backed by stringent quality control to ensure reliability for your critical processes.

Application

• Precursor for Silicon Carbide (SiC) Ceramics: Serves as a polymeric precursor for the production of high-performance SiC fibers and composites used in aerospace and high-temperature applications.
• Silicon-Containing Polymer Synthesis: Acts as a fundamental building block for synthesizing polycarbosilanes, polysilazanes, and other advanced silicon-based polymers.
• Surface Modification & Coatings: Used to create hydrophobic, oleophobic, or protective coatings on glass, metals, and ceramics.
• Electronic Materials: Employed in the development of low-k dielectric materials, passivation layers, and other components in semiconductor manufacturing.
• Adhesives and Sealants: Imparts enhanced thermal and chemical resistance to high-performance adhesive and sealant formulations.
• Research & Development: A critical reagent in academic and industrial R&D for exploring new organosilicon chemistry and material science.

Basic Information

Product Name	Polymethylphenyl Silane
CAS No.	76188-55-1
Molecular Formula	(C7H10Si)n
Molecular Weight	Variable (Polymer)
Synonyms	Poly(methylphenylsilane); Methylphenylpolysilane; PMPS; Polymethyl(phenyl)silane; Silicon, methylphenylpolymers; Poly(methylphenylsilylene); (Methylphenylsilylene) polymer
EINECS	Contact for details

Quality Control

Every batch of our Polymethylphenyl Silane is produced and tested under a strict quality management system. We ensure consistent molecular weight distribution, purity, and reactivity critical for precursor applications. Comprehensive analytical testing, including GPC (Gel Permeation Chromatography) and NMR, is performed. Certificates of Analysis (COA) detailing batch-specific results are provided to guarantee the material meets your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and should be stored under a dry, inert atmosphere (e.g., nitrogen or argon) in a cool, dry place. Recommended storage temperature is 2-8°C for long-term stability. Allow the container to reach room temperature before opening to prevent moisture condensation.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid or solid
Identification (IR)	Conforms to structure
Average Molecular Weight (GPC)	Contact for details
Phenyl Content (NMR)	Contact for details
Moisture Content (KF)	< 0.1%
Solubility	Soluble in common organic solvents (toluene, THF, hexane)

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