Description

Poly(Tetrahydrofuran), also known as Polytetramethylene Ether Glycol (PTMEG), is a high-performance polyether polyol. This versatile polymer is a critical building block for producing high-quality, durable elastomers and fibers. It is essential for manufacturers in the polyurethane, spandex, and specialty copolymer industries seeking consistent molecular weight and hydroxyl functionality for reliable polymerization. Our global supply ensures purity and batch-to-batch consistency for your most demanding applications.

Application

• Spandex/Elastane Fiber Production: The primary raw material for manufacturing flexible, resilient spandex fibers used in activewear and textiles.
• Thermoplastic Polyurethane (TPU) Elastomers: Used to create TPUs for applications like cable sheathing, hoses, films, and automotive parts requiring excellent abrasion resistance and flexibility.
• Copolyester-Ether (COPE) Elastomers: Serves as a soft segment in high-performance elastomers for medical devices and industrial components.
• Polyurethane (PU) Cast Elastomers: A key component in producing durable rollers, wheels, and industrial pads.
• Surface Coatings & Adhesives: Imparts flexibility and toughness to high-performance coatings, sealants, and adhesive formulations.
• Specialty Lubricants and Functional Fluids: Used in the formulation of high-stability synthetic lubricants and hydraulic fluids.

Basic Information

Product Name	Poly(Tetrahydrofuran)
CAS No.	25190-06-1
Molecular Formula	(C4H8O)n
Molecular Weight	Varies by grade (e.g., 650, 1000, 2000, 2900 g/mol typical)
Synonyms	Polytetrahydrofuran; PTMEG; PolyTHF; Polytetramethylene Ether Glycol; Poly(oxytetramethylene) glycol; PTMG; Tetrahydrofuran homopolymer; α-Hydro-ω-hydroxypoly(oxy-1,4-butanediyl); Poly(1,4-butylene glycol)
EINECS	246-685-8

Quality Control

Our Poly(Tetrahydrofuran) is manufactured under strict quality management systems. Each batch is tested to ensure compliance with critical parameters such as molecular weight, hydroxyl value, water content, and color (APHA). Certificates of Analysis (COA) detailing the full specification are provided with every shipment to guarantee material consistency and performance for your polymerization processes.

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). Keep containers tightly sealed under a dry inert gas (e.g., nitrogen) blanket when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Molecular Weight (Nominal)	As per grade (e.g., 650, 1000, 2000, 2900)
Hydroxyl Value (mg KOH/g)	Grade-specific (e.g., 170-175 for MW~650)
Water Content (Karl Fischer)	≤ 0.05 %
Color (APHA)	≤ 50
Acid Value (mg KOH/g)	≤ 0.05
Peroxide Value (meq/kg)	≤ 5.0

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