Description

Polycarbomethylsilane CAS NO 62306-27-8 is a specialized organosilicon polymer characterized by a backbone of silicon and carbon atoms with methyl and carboxy functional groups. This unique structure provides a valuable precursor for advanced ceramic materials, particularly silicon carbide (SiC) fibers and matrices, which are critical for high-temperature applications. It is an essential raw material for manufacturers in the aerospace, defense, and advanced composites industries seeking to produce lightweight, thermally stable components.

Application

• Precursor for Silicon Carbide (SiC) Fibers: Primary use in the production of high-strength, heat-resistant continuous SiC fibers via polymer pyrolysis.
• Ceramic Matrix Composites (CMCs): Used as a preceramic polymer to fabricate SiC-based matrices for components in jet engines and gas turbines.
• Advanced Composite Materials: Serves as a binder or impregnation agent for carbon and ceramic fiber reinforcements.
• Protective Coatings: Applied to create oxidation-resistant and thermal barrier coatings on metals and other substrates.
• Additive Manufacturing: Investigated as a feedstock for 3D printing of complex ceramic parts through stereolithography or direct ink writing.
• Research & Development: Key material in academic and industrial R&D for next-generation high-performance ceramics and nanocomposites.

Basic Information

Product Name	Polycarbomethylsilane
CAS No.	62306-27-8
Molecular Formula	(C4H10O2Si)n
Molecular Weight	Varies (Polymer)
Synonyms	Poly(methylsilanecarboxylate); Poly[(methylsilylene)carboxylate]; PCMS; PMS; Carbomethylsilane polymer; Methylsilane-carboxylic acid polymer; Preceramic polymer for SiC; Silicon carbide precursor polymer
EINECS	Contact for details

Quality Control

Our Polycarbomethylsilane is manufactured under controlled conditions to ensure batch-to-batch consistency critical for ceramic yield and final material properties. Quality is verified through a suite of analytical techniques including Gel Permeation Chromatography (GPC) for molecular weight distribution, Fourier-Transform Infrared Spectroscopy (FT-IR) for structural confirmation, and thermogravimetric analysis (TGA) to determine ceramic yield. A Certificate of Analysis (COA) detailing viscosity, solids content, and key functional group analysis is provided with each shipment.

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). The product may be moisture-sensitive; keep the container tightly sealed when not in use to prevent exposure to atmospheric humidity, which can affect viscosity and reactivity. Keep away from heat sources and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Solid Content	≥ 95%
Viscosity (25°C)	500 - 5000 mPa·s (Grade dependent)
Ceramic Yield (TGA, N2)	≥ 60%
Molecular Weight (Mw, GPC)	1000 - 5000 Da

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