Description

Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.,.Alpha.,.Alpha.-1,2,3-Propanetriyltris.Omega.-3-(Dimethoxymethylsilyl)Propoxy- is a specialized organosilicon polyether, a reactive silane-terminated polymer with a branched, tri-functional core. This compound matters for its unique ability to act as a versatile coupling agent and crosslinker, forming durable bonds between organic polymers and inorganic substrates. Industries requiring advanced adhesion, surface modification, or the creation of hybrid organic-inorganic networks, such as high-performance sealants, coatings, and composite materials, are the primary users of this chemical.

Application

• As a key adhesion promoter and crosslinking agent in moisture-curable silicone-modified polymers (MS Polymers) and hybrid sealants.
• Surface modification of inorganic fillers (e.g., silica, glass fibers) to improve compatibility and dispersion in polymer matrices for composites.
• Formulation of primers and coatings for glass, metals, and plastics to enhance wetting, adhesion, and durability.
• Synthesis of specialty silicone polyethers and block copolymers for use as surfactants or foam stabilizers.
• Manufacturing of flexible and rigid polyurethane foams and elastomers where silane functionality improves hydrolytic stability.
• Component in electronic encapsulants and potting compounds to provide stress relief and environmental protection.

Basic Information

Item	Detail
Product Name	Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.,.Alpha.,.Alpha.-1,2,3-Propanetriyltris.Omega.-3-(Dimethoxymethylsilyl)Propoxy-
CAS No.	151865-59-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Trimethoxysilyl-terminated Polyether Triol; Silane-terminated Polyether; 3-(Dimethoxymethylsilyl)propyl-terminated Polyoxypropylene Triol; Alpha,Alpha,α-1,2,3-Propanetriyltris[ω-(3-(dimethoxymethylsilyl)propoxy)poly(oxy(methyl-1,2-ethanediyl))]; Branched Silane-functional Polyether; MS Polymer Crosslinker; Adhesion Promoter Silane
EINECS	Contact for details

Quality Control

Our production of Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.,.Alpha.,.Alpha.-1,2,3-Propanetriyltris.Omega.-3-(Dimethoxymethylsilyl)Propoxy- adheres to a rigorous quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency in functionality, viscosity, and silane content. Certificates of Analysis (COA) documenting key specifications are provided to guarantee the material meets your precise formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). 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 premature hydrolysis and crosslinking.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Silane Content)	Contact for details
Viscosity @ 25°C	Contact for details
Water Content	< 0.1% (Karl Fischer)
Specific Gravity @ 25°C	Contact for details
Refractive Index @ 20°C	Contact for details

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