Description

Poly[Oxy(Methyl-1,2-Ethanediyl)], α-Hydro-ω-Hydroxy-, 2-Propynyl Ether is a specialized propargyl-terminated poly(propylene glycol) derivative, a reactive polyether intermediate. This compound is valued for its terminal alkyne functionality, which enables efficient click chemistry reactions, such as copper-catalyzed azide-alkyne cycloaddition (CuAAC), for polymer modification and crosslinking. It is essential for R&D and production in industries requiring tailored polymer architectures, advanced coatings, and functional materials.

Application

• Click Chemistry Intermediate: As a key building block for CuAAC reactions to create novel polymer networks, hydrogels, and dendrimers.
• Surface Modification & Coatings: Used to functionalize surfaces with polyether chains to impart specific properties like lubricity, hydrophilicity, or anti-fouling characteristics.
• Adhesive & Sealant Formulations: Serves as a reactive modifier in polyurethane and other adhesive systems to enhance flexibility, adhesion, and cure properties.
• Bioconjugation & Biomedical Materials: Enables the attachment of poly(ethylene glycol) (PEG) chains or other molecules to proteins, peptides, or drug delivery vehicles.
• Advanced Material Synthesis: A precursor for synthesizing block copolymers, star polymers, and other complex macromolecular structures with precise architecture.
• Lubricant & Hydraulic Fluid Additive: Acts as a functional base fluid or additive to improve the performance and stability of industrial lubricants.

Basic Information

Product Name	Poly[Oxy(Methyl-1,2-Ethanediyl)], α-Hydro-ω-Hydroxy-, 2-Propynyl Ether
CAS No.	67922-60-5
Molecular Formula	CnH2n+2On+1 (Variable, based on 'n' value)
Molecular Weight	Variable (Contact for details on specific molecular weight grades)
Synonyms	Propargyl-terminated Poly(propylene glycol); α-Propargyl-ω-hydroxy poly(propylene oxide); PPG Propargyl Ether; Poly(propylene glycol) propargyl ether; Propargyl-PPG; 2-Propyn-1-yl ether with α-hydro-ω-hydroxypoly(oxy-1,2-ethanediyl); Alkyne-functional PPG; Reactive polyether polyol.
EINECS	Contact for details

Quality Control

Our Poly[Oxy(Methyl-1,2-Ethanediyl)], α-Hydro-ω-Hydroxy-, 2-Propynyl Ether is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent functionality, purity, and molecular weight distribution. Key parameters monitored include hydroxyl value, propargyl content, and moisture levels. Certificates of Analysis (COA) detailing all specifications are available upon request.

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). Due to its properties of being easily oxidized (store under inert atmosphere) and highly volatile, it is recommended to keep containers sealed under an inert gas (e.g., nitrogen or argon) when not in use and away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Assay (Propargyl Content)	≥ 95%
Hydroxyl Value (mg KOH/g)	As per grade (Contact for details)
Average Molecular Weight (Mn)	As per grade (e.g., 400, 1000, 2000)
Moisture (KF)	≤ 0.1%
Viscosity @ 25°C	Reported on COA

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