Description

Poly(Polytetrahydrofuran Carbonate) Diol , Average Mn Ca. 2,000 CAS NO 92538-66-4 is a high-performance, aliphatic polycarbonate diol derived from polytetrahydrofuran (polyTHF). This compound is a crucial building block in advanced polymer synthesis, valued for its excellent hydrolytic stability, low-temperature flexibility, and resistance to oxidation and yellowing. It is primarily used by formulators and manufacturers in the polyurethane, coatings, and specialty elastomers industries to create durable, high-quality end products.

Application

• High-Performance Polyurethane Elastomers: Used as a soft segment to impart superior mechanical properties, hydrolytic stability, and excellent low-temperature flexibility.
• Coatings and Adhesives: Serves as a key raw material for producing weather-resistant, non-yellowing, and durable coatings for automotive, industrial, and architectural applications.
• Thermoplastic Polyurethanes (TPU): Enhances the processing and performance characteristics of TPUs used in films, hoses, cables, and consumer goods.
• Synthetic Leather and Artificial Leather: Provides the necessary softness, flexibility, and durability in binders and finishes.
• Sealants and Caulks: Contributes to long-lasting, flexible, and moisture-resistant formulations.
• Medical-Grade Polymers: Suitable for applications requiring biocompatibility and stability, subject to appropriate purification and certification.

Basic Information

Product Name	Poly(Polytetrahydrofuran Carbonate) Diol , Average Mn Ca. 2,000
CAS No.	92538-66-4
Molecular Formula	(C5H8O2)n (Representative)
Molecular Weight	Average Mn ~2,000 g/mol
Synonyms	Poly(THF carbonate) diol; Poly(tetrahydrofuran carbonate) diol; PTMCD; Poly(tetramethylene carbonate) glycol; Polycarbonate diol from polyTHF; Aliphatic polycarbonate diol; Poly(oxytetramethylene carbonate) diol; PCDL (PolyCarbonate DioL)
EINECS	Contact for details

Quality Control

Our Poly(Polytetrahydrofuran Carbonate) Diol is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistency in molecular weight, hydroxyl value, acidity, and moisture content. Certificates of Analysis (COA) detailing key 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, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be kept under a dry inert atmosphere (e.g., nitrogen) after opening to prevent moisture absorption and potential oxidation. Keep away from strong oxidizers and heat sources.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Average Molecular Weight (Mn)	~2,000 g/mol
Hydroxyl Value (OHV)	56.1 mg KOH/g (Theoretical, typical range provided on COA)
Acid Value	≤ 0.1 mg KOH/g
Moisture (Karl Fischer)	≤ 0.05 %
Color (APHA)	≤ 50
Viscosity (at 40°C)	Contact for details

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