Description

Poly(Propylene Adipate) is a high-performance, biodegradable polyester polyol derived from propylene glycol and adipic acid. This versatile polymer is valued for its excellent flexibility, low-temperature properties, and compatibility with various resin systems, making it a crucial component in the formulation of advanced polyurethanes and other specialty polymers. It is primarily sought by manufacturers in the polyurethane elastomer, adhesive, coating, and biodegradable plastic industries for its ability to enhance product durability and environmental profile.

Application

• Polyurethane Elastomers & Foams: As a key soft segment polyol for producing flexible, resilient, and hydrolysis-resistant PU materials.
• Adhesives & Sealants: Imparts flexibility, adhesion, and low-temperature performance to high-strength bonding formulations.
• Biodegradable Plastics & Composites: Serves as a biodegradable modifier or base resin for environmentally friendly packaging and films.
• Coating Resins: Used in the synthesis of polyurethane dispersions (PUDs) and other coatings requiring excellent flexibility and chemical resistance.
• Thermoplastic Polyurethanes (TPU): A fundamental building block for creating high-performance TPU used in cables, hoses, and footwear.
• Plasticizers & Modifiers: Acts as a polymeric plasticizer to improve the low-temperature flexibility and processing of PVC and other polymers.

Basic Information

Product Name	Poly(Propylene Adipate)
CAS No.	36221-42-8
Molecular Formula	(C9H14O4)n
Molecular Weight	Varies (Polymer)
Synonyms	Poly(propylene adipate) glycol; PPAd; Poly(oxy-1,2-ethanediyloxyadipoyl); Adipic acid, polymer with 1,2-propanediol; Propylene adipate polyester polyol; Poly(1,2-propylene adipate); 1,2-Propanediol adipate polyester; Poly(propylene adipate) diol
EINECS	Contact for details

Quality Control

Our Poly(Propylene Adipate) is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent properties such as hydroxyl value, acid value, viscosity, and molecular weight distribution. Certificates of Analysis (COA) documenting these specifications are available upon request to support your quality assurance and regulatory compliance needs.

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 the container tightly sealed when not in use to prevent moisture absorption, which can affect product performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Hydroxyl Value (mg KOH/g)	Contact for details
Acid Value (mg KOH/g)	≤ 2.0
Moisture Content (%)	≤ 0.1
Viscosity @ 25°C (mPa·s)	Contact for details
Molecular Weight (Mn)	Contact for details

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