Description

Poly(Ethylene-Co-1,2-Butylene)Diol is a high-performance, random copolymer diol characterized by its unique combination of ethylene and 1,2-butylene oxide units. This structure provides a versatile balance of hydrophilicity, flexibility, and compatibility, making it a valuable intermediate for advanced material synthesis. It is essential for formulators and manufacturers in the polyurethane, coatings, and specialty chemical industries seeking to fine-tune polymer properties such as elasticity, adhesion, and hydrolytic stability.

Application

• Polyurethane Elastomers & Foams: Serves as a key soft segment polyol to impart flexibility, resilience, and low-temperature performance to TPUs, cast elastomers, and flexible foams.
• High-Performance Coatings & Adhesives: Used in the synthesis of polyurethane dispersions (PUDs) and other resins for durable, flexible, and chemical-resistant coatings, sealants, and adhesives.
• Thermoplastic Polyurethanes (TPUs): A critical building block for producing TPUs with tailored hardness, processing characteristics, and mechanical properties for films, cables, and industrial parts.
• Specialty Surfactants & Lubricants: Acts as a hydrophilic backbone for non-ionic surfactants, emulsifiers, and synthetic lubricants requiring controlled solubility and stability.
• Polymer Modification: Employed as a compatibilizer or plasticizer to enhance the properties of other polymers, improving impact resistance and processability.
• Pharmaceutical & Cosmetic Excipients: Used in the production of specialized carriers and delivery systems where biocompatibility and controlled release are required.

Basic Information

Product Name	Poly(Ethylene-Co-1,2-Butylene)Diol
CAS No.	68954-10-9
Molecular Formula	(C2H4O)x(C4H8O)y • H2O
Molecular Weight	Variable (Grade Dependent)
Synonyms	Poly(ethylene glycol-co-1,2-butylene glycol); Ethylene Oxide-1,2-Butylene Oxide Copolymer Diol; PEG-PBOG Copolymer; Poly(oxyethylene-co-oxy-1,2-butylene) Diol; EO/BO Random Copolymer Polyol; Hydrophilic Polyether Diol; Oxirane, methyl-, polymer with oxirane, dihydroxy-terminated; Poly(ethylene-co-butylene oxide) glycol
EINECS	Contact for details

Quality Control

Our Poly(Ethylene-Co-1,2-Butylene)Diol is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistency in hydroxyl value, molecular weight distribution, viscosity, and moisture content. Certificates of Analysis (COA) documenting these parameters are available for every shipment, providing full traceability and compliance with relevant industry standards.

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). This product is hygroscopic (moisture-sensitive). To prevent water absorption and potential degradation, containers must be kept tightly sealed when not in use and under a dry inert atmosphere (e.g., nitrogen) for long-term storage.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Hydroxyl Value (mg KOH/g)	Grade Dependent
Water Content (KF)	≤ 0.1%
Viscosity @ 25°C (cP)	Grade Dependent
Acid Value (mg KOH/g)	≤ 0.05
Ethylene Oxide Content	Grade Dependent
Molecular Weight (Mn)	Grade Dependent

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