Description

Poly Adipic Poly Anhydride (CAS NO 26776-26-1) is a high-purity, reactive chemical intermediate widely used in advanced polymer synthesis. This compound is valued for its ability to introduce adipic acid units into polymer backbones, enhancing material properties such as flexibility, thermal stability, and hydrolytic resistance. It is an essential raw material for manufacturers in the pharmaceutical, specialty polymer, and epoxy resin industries seeking to develop high-performance coatings, adhesives, and controlled-release drug delivery systems.

Application

• Pharmaceutical Intermediates: Key building block for synthesizing biodegradable polymers used in controlled drug delivery and medical implants.
• Epoxy Curing Agents & Hardeners: Used to produce flexible, chemically resistant epoxy resin systems for coatings, adhesives, and composites.
• Polymer Modification: Serves as a chain extender or cross-linking agent to improve the toughness and thermal properties of polyesters, polyamides, and polyurethanes.
• Specialty Coatings: Imparts enhanced durability and adhesion properties in high-performance industrial and protective coatings.
• Adhesive Formulations: Contributes to the development of strong, flexible adhesives for automotive, aerospace, and construction applications.
• Research & Development: A critical reagent in R&D laboratories for creating novel polymeric materials with tailored characteristics.

Basic Information

Product Name	Poly Adipic Poly Anhydride
CAS No.	26776-26-1
Molecular Formula	(C6H8O4)n
Molecular Weight	Contact for details
Synonyms	Poly(adipic anhydride); Adipic Acid Poly Anhydride; Poly(1,5-dioxopentane-1,5-diyl); Adipic Anhydride Polymer; Poly(adipic acid) Anhydride; Oligomeric Adipic Anhydride; Adipic Acid-Based Poly Anhydride; PAAn
EINECS	Contact for details

Quality Control

Our Poly Adipic Poly Anhydride is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, molecular weight distribution, and reactivity. Certificates of Analysis (COA) documenting key parameters are provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) in its original packaging to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms
Assay (Anhydride Content)	≥ 95.0%
Free Adipic Acid	≤ 3.0%
Moisture (KF)	≤ 0.5%
Molecular Weight (GPC)	Contact for details

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