Description

Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.-Hydro-.Omega.-Hydroxy-, Ether With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol (4:1), 2-Hydroxy-3-Mercaptopropyl Ether is a specialized polyether polyol derivative containing a terminal thiol (mercapto) functional group. This unique bifunctional structure, combining polyether chains with reactive hydroxyl and thiol moieties, makes it a valuable reactive intermediate and crosslinking agent in advanced polymer synthesis. It is primarily needed by formulators and chemical manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in the production of specialty polymers and resins requiring tailored properties.

Application

• Crosslinking Agent for Polyurethane Systems: The thiol group can participate in reactions with isocyanates or act as a chain transfer agent, modifying cure kinetics and final polymer properties like flexibility and chemical resistance.
• Intermediate for Epoxy Resin Modifiers: Used to synthesize epoxy adducts that impart improved impact resistance, adhesion, and flexibility to cured epoxy formulations.
• Component in Radiation-Curable Coatings and Inks: Serves as a reactive diluent or oligomer in UV/EB-curable systems, contributing to reduced viscosity and enhanced film properties.
• Building Block for Specialty Surfactants and Dispersants: The polyether backbone provides hydrophilic character, making derivatives useful as wetting or dispersing agents in demanding applications.
• Modifier for Acrylic and Vinyl Polymers: Can be incorporated to introduce pendant thiol groups for post-functionalization or to improve compatibility in polymer blends.
• Adhesive and Sealant Formulations: Enhances adhesion to various substrates and contributes to the elastic recovery and durability of sealants.

Basic Information

Product Name	Polyoxy(Methyl-1,2-Ethanediyl), .Alpha.-Hydro-.Omega.-Hydroxy-, Ether With 2,2-Bis(Hydroxymethyl)-1,3-Propanediol (4:1), 2-Hydroxy-3-Mercaptopropyl Ether
CAS No.	72244-98-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Pentaerythritol ethoxylate, 2-hydroxy-3-mercaptopropyl ether; Poly(ethylene glycol) ether with pentaerythritol and 3-mercapto-1,2-propanediol; Thiol-functional polyether polyol; Mercapto-modified polyol; PEG pentaerythritol mercapto ether; 3-Mercapto-2-hydroxypropyl ether of ethoxylated pentaerythritol; Reactive polyol thioether
EINECS	Contact for details

Quality Control

Our production of this specialty polyol adheres to strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure consistency in key parameters such as hydroxyl value, thiol content, viscosity, and water content. Certificates of Analysis (COA) detailing these specifications are provided with every shipment to guarantee traceability and support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). To maintain quality and prevent moisture absorption, keep the container tightly sealed when not in use. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Hydroxyl Value (mg KOH/g)	Contact for details
Thiol Content (mmol/g)	Contact for details
Viscosity @ 25°C (mPa·s)	Contact for details
Water Content (KF)	≤ 0.5%
Color (APHA)	≤ 100

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