Description

Diethyl Carbonate Polymer With 1,6-Hexanediol And 3-Methyl-1,5-Pentanediol is a specialized aliphatic polycarbonate diol, a high-performance polymer intermediate synthesized from diethyl carbonate and a blend of diols. This compound is valued for its excellent hydrolytic stability, low-temperature flexibility, and resistance to yellowing, making it a superior alternative to traditional polyether and polyester polyols. It is primarily sought by formulators in the polyurethane, coatings, adhesives, and specialty elastomers industries seeking to enhance product durability and performance.

Application

• High-Performance Polyurethane Elastomers: Used as a soft segment to impart superior mechanical properties, hydrolysis resistance, and flexibility at low temperatures.
• Coatings and Surface Finishes: Serves as a key building block for polyurethane coatings requiring excellent weatherability, chemical resistance, and gloss retention.
• Adhesives and Sealants: Provides enhanced adhesion, elasticity, and durability in formulations for construction, automotive, and industrial bonding applications.
• Synthetic Leather and Artificial Leather (PU Leather): A critical component in producing flexible, breathable, and durable polyurethane layers for synthetic fabrics.
• Thermoplastic Polyurethane (TPU): Used in the synthesis of TPUs for wires, cables, hoses, and medical tubing that demand high clarity and resistance to oils and greases.
• Biomedical Polymers: Investigated for use in biocompatible and biodegradable polymer matrices due to the potential for controlled degradation of the carbonate linkage.

Basic Information

Product Name	Diethyl Carbonate Polymer With 1,6-Hexanediol And 3-Methyl-1,5-Pentanediol
CAS No.	140936-35-2
Molecular Formula	(C11H20O5)n (Representative repeating unit)
Molecular Weight	Varies (Typically 500 - 5000 g/mol, depending on polymerization degree 'n')
Synonyms	Poly(hexamethylene-co-3-methylpentamethylene carbonate) diol; Aliphatic Polycarbonate Diol (PCD); Polycarbonate Diol from 1,6-Hexanediol and 3-Methyl-1,5-pentanediol; Poly(1,6-hexanediol/3-methyl-1,5-pentanediol carbonate); PCD Polyol; Polycarbonate Polyol; Polycarbonate Diol Copolymer; Hexanediol/Methylpentanediol Polycarbonate
EINECS	Contact for details

Quality Control

Our Diethyl Carbonate Polymer With 1,6-Hexanediol And 3-Methyl-1,5-Pentanediol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistent properties such as hydroxyl value, molecular weight distribution, viscosity, and acid value. Certificates of Analysis (COA) detailing these specifications are provided with every shipment to guarantee compliance with your formulation requirements and 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 material is hygroscopic (moisture-sensitive). Keep the container tightly sealed under a dry inert atmosphere (e.g., nitrogen) to prevent moisture absorption and potential degradation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 0.10
Moisture Content (Karl Fischer)	≤ 0.05 %
Viscosity @ 25°C (mPa·s)	Contact for details
Molecular Weight (Mn, GPC)	Contact for details
Polydispersity Index (PDI)	Contact for details
Color (APHA)	≤ 50

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