Description

α-Hydro-ω-[3-(Dimethoxymethylsilyl)Propoxy]-Poly[Oxy(Methyl-1,2-Ethanediyl)] Ether With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol(4:1) is a specialized organosilicon-modified polyether polyol, designed to impart unique surface-active and compatibilizing properties. This compound is critical for formulators seeking to enhance the performance and stability of complex polymer systems. It is primarily utilized in the production of high-performance polyurethane foams, coatings, adhesives, and sealants where controlled hydrophilicity and improved substrate adhesion are required.

Application

• As a key reactive component in the synthesis of high-resilience and flexible polyurethane foams.
• As a compatibilizer and surfactant in polyurethane coatings and adhesives to improve flow, leveling, and substrate wetting.
• As an additive in silicone-modified polymers (SPURs) to enhance weatherability and mechanical properties.
• In the formulation of release coatings and mold-making materials due to its organosilicon functionality.
• As a surface-modifying agent for fillers and pigments to improve dispersion in polymer matrices.
• In the production of specialty elastomers and sealants requiring a balance of flexibility and durability.

Basic Information

Product Name	α-Hydro-ω-[3-(Dimethoxymethylsilyl)Propoxy]-Poly[Oxy(Methyl-1,2-Ethanediyl)] Ether With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol(4:1)
CAS No.	185701-95-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Silane-terminated Polyether Polyol; Organosiloxane Polyether Polyol; Alkoxysilane-modified Polyoxyalkylene Polyol; Polyether Polyol, silane-terminated; Poly[oxy(methyl-1,2-ethanediyl)], α-hydro-ω-[3-(dimethoxymethylsilyl)propoxy]-, ether with 2,2-bis(hydroxymethyl)-1,3-propanediol (4:1); Reactive Polyether Polyol with Dimethoxymethylsilyl Group; Silylated Polyether Polyol
EINECS	Contact for details

Quality Control

Our production of this organosilicon polyol adheres to strict quality management systems. Each batch is characterized to ensure consistent hydroxyl value, viscosity, and silane content, meeting the precise requirements for polyurethane and polymer formulation. Certificates of Analysis (COA) detailing key parameters 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). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed after opening to prevent moisture absorption, which can affect reactivity. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Hydroxyl Value (mg KOH/g)	Contact for details
Viscosity @ 25°C (cP)	Contact for details
Water Content (%)	≤ 0.1
Specific Gravity @ 25°C	Contact for details
Silane Content (%)	Contact for details

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