Description

Polytetrahydrofuran Bis(3-Aminopropyl) Terminated is a reactive, amine-terminated polyether diol based on polytetrahydrofuran (polyTHF) chemistry. This compound is a crucial building block for synthesizing high-performance polyurethanes, polyamides, and epoxy curing agents, offering enhanced flexibility, hydrolytic stability, and chemical resistance to the final polymer. It is primarily utilized by formulators and manufacturers in the coatings, adhesives, sealants, and elastomers (CASE) industries, as well as in advanced material research for creating tailored polymer networks.

Application

• Polyurethane Elastomers & Coatings: Acts as a chain extender or soft segment component, imparting excellent low-temperature flexibility, toughness, and hydrolysis resistance to PU systems.
• Epoxy Curing Agent: Serves as a flexible amine hardener for epoxy resins, resulting in coatings and composites with improved impact resistance and reduced brittleness.
• Polyamide Synthesis: Used as a monomer for producing polyamide copolymers (polyether block amides - PEBA) with enhanced elastomeric properties.
• Adhesives & Sealants: Incorporated to improve the flexibility, adhesion, and durability of high-performance structural and flexible adhesives.
• Crosslinking Agent: Functions as a crosslinker for resins requiring amine-reactive chemistry, modifying mechanical and thermal properties.
• Surface Modification & Grafting: Utilized to introduce amine functionality onto surfaces or polymers for further chemical modification.
• Pharmaceutical & Biomedical Polymers: Employed in research for synthesizing biocompatible and biodegradable polymer matrices (subject to appropriate purity grades).

Basic Information

Product Name	Polytetrahydrofuran Bis(3-Aminopropyl) Terminated
CAS No.	72088-96-1
Molecular Formula	CnH2n+2OmN2 (Variable based on PTHF chain length)
Molecular Weight	Variable (Typically 500-3000 g/mol). Contact for details on specific grades.
Synonyms	PolyTHF Diamine; Poly(tetramethylene ether glycol) bis(3-aminopropyl) terminated; PTMEG Diamine; Aminopropyl terminated polytetrahydrofuran; Poly(tetrahydrofuran) diamine; Jeffamine® THF-diamine (analog); α,ω-Bis(3-aminopropyl)poly(tetrahydrofuran); Poly(oxytetramethylene) diamine
EINECS	Contact for details

Quality Control

Our Polytetrahydrofuran Bis(3-Aminopropyl) Terminated is manufactured under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistency and compliance with agreed specifications. Key parameters monitored include amine value, moisture content, color, and molecular weight distribution. A Certificate of Analysis (COA) detailing these results is provided with every shipment to guarantee traceability and quality assurance for your production 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) and should be kept under a dry inert atmosphere (e.g., nitrogen) after opening to prevent degradation and moisture absorption. Keep away from strong bases and incompatible materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Amine Value (mg KOH/g)	As per grade (e.g., 50-120)
Moisture (KF)	≤ 0.1%
Color (APHA)	≤ 100
Molecular Weight (Mn)	As per grade (e.g., 1000, 2000)
Purity (GC/HPLC)	≥ 98.0%

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