Description

Butadiene Copolymer, Hydroxy-Terminated, Ethoxylated is a specialized reactive polyol intermediate, chemically modified with ethylene oxide to introduce hydrophilic terminal hydroxyl groups. This modification is critical for enhancing compatibility with polar systems and providing reactive sites for further chemical synthesis, such as in polyurethane or polymer network formation. It is an essential raw material for formulators and polymer chemists in the adhesives, sealants, coatings, and elastomers industries seeking to fine-tune flexibility, hydrophilicity, and crosslink density.

Application

• Polyurethane Systems: As a reactive polyol component for flexible foams, elastomers, coatings, and adhesives, imparting tailored soft-segment properties and improved moisture resistance.
• Hydrophilic Modifier: Used to increase the water compatibility or moisture permeability of polymers in applications like breathable films or moisture-cure systems.
• Adhesive & Sealant Formulations: Serves as a backbone polymer for moisture-curing or chemically curing sealants and adhesives, enhancing flexibility and adhesion.
• Polymer Modification: Acts as a macromonomer or compatibilizer to modify the properties of other polymers, improving impact resistance or processability.
• Coating Resins: Incorporated into coating formulations to improve film flexibility, toughness, and chemical resistance.
• Crosslinking Agent: Utilized in systems requiring hydroxyl-functional crosslinkers to react with isocyanates, epoxies, or other functional groups.

Basic Information

Product Name	Butadiene Copolymer, Hydroxy-Terminated, Ethoxylated
CAS No.	72102-32-0
Molecular Formula	Typically (C4H6)x.(C2H4O)y, variable
Molecular Weight	Variable (Contact for details on specific grade)
Synonyms	Hydroxy-Terminated Ethoxylated Butadiene Copolymer; Ethoxylated Hydroxy-Terminated Polybutadiene; Polybutadiene polyol, ethoxylated; Hydroxyl-terminated butadiene-ethylene oxide copolymer; Reactive liquid polymer; HTPB-EO copolymer; Polybd® modified polyol (related class); RLP (Reactive Liquid Polymer)
EINECS	Contact for details

Quality Control

Our Butadiene Copolymer, Hydroxy-Terminated, Ethoxylated is manufactured under a stringent quality management system. Each batch is characterized for critical parameters including hydroxyl value, ethylene oxide content, molecular weight distribution, and viscosity to ensure consistent performance. Certificates of Analysis (COA) documenting these specifications are provided with every shipment to guarantee compliance with your formulation requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F) under an inert atmosphere (e.g., nitrogen) to prevent oxidation and moisture absorption. Keep away from heat, sparks, and open flame. For long-term storage, consider refrigeration to maintain optimal properties.

Specification

Item	Specification
Appearance	Clear, viscous liquid
Color (Gardner)	≤ 3
Hydroxyl Value (mg KOH/g)	Contact for details
Ethylene Oxide Content (%)	Contact for details
Viscosity @ 25°C (cP)	Contact for details
Moisture Content (KF)	≤ 0.1%
Specific Gravity @ 25°C	Contact for details

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