Description

α,α′-Methylenebis[ω-3-(Dimethoxymethyl- Silyl)Propoxy]Poly[Oxy(Methyl-1,2-Ethane-Diyl)] is a specialized organosilicon polyether, a reactive silane-terminated polymer designed for advanced material synthesis. This compound matters for its unique dual functionality, acting as both a crosslinking agent and a compatibilizer to enhance the performance of polymer matrices. It is essential for R&D chemists and formulators in the adhesives, sealants, coatings, and specialty polymer industries seeking to improve adhesion, flexibility, and chemical resistance in their products.

Application

• As a crosslinking agent in moisture-curable silicone-modified polymers (MS Polymers) for high-performance sealants and adhesives.
• As a reactive modifier in polyurethane (PU) and epoxy resin systems to enhance adhesion to difficult substrates like glass, metals, and plastics.
• As a coupling agent in composite materials to improve the interfacial bonding between inorganic fillers and organic polymer matrices.
• In the formulation of specialty coatings to impart improved weatherability, moisture resistance, and mechanical properties.
• As a key intermediate in the synthesis of tailored silicone polyethers and other advanced functional polymers.
• For R&D applications focusing on surface modification and the creation of novel hybrid organic-inorganic materials.

Basic Information

Item	Details
Product Name	α,α′-Methylenebis[ω-3-(Dimethoxymethyl- Silyl)Propoxy]Poly[Oxy(Methyl-1,2-Ethane-Diyl)]
CAS No.	70788-42-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Bis(3-(dimethoxymethylsilyl)propyl) terminated poly(propylene glycol); α,ω-Bis(dimethoxymethylsilyl) polyoxypropylene; Silane-terminated polypropylene glycol; Methoxy-functional silane polyether; Crosslinkable silicone polyether; Reactive polyether silane; MS Polymer precursor; Dimethoxymethylsilyl functionalized PPG
EINECS	Contact for details

Quality Control

Our production of α,α′-Methylenebis[ω-3-(Dimethoxymethyl- Silyl)Propoxy]Poly[Oxy(Methyl-1,2-Ethane-Diyl)] adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistency in functionality, purity, and performance. Certificates of Analysis (COA) detailing key parameters such as silane content, molecular weight distribution, and moisture levels 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/59-77°F). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under a dry inert atmosphere (e.g., nitrogen) after opening to prevent hydrolysis and maintain product integrity. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (Silane Content)	Contact for details
Molecular Weight (GPC)	Contact for details
Viscosity	Contact for details
Water Content	< 0.1% (Karl Fischer)
Specific Gravity	Contact for details

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