Description

Polyacrylonitrile is a synthetic, semicrystalline organic polymer resin and a key precursor in the chemical industry. Its primary commercial importance lies in its role as the fundamental building block for carbon fiber and a wide range of specialty acrylic fibers. This versatile polymer is essential for manufacturers and R&D facilities seeking high-performance materials for advanced composites, filtration media, and specialty textiles.

Application

• Carbon Fiber Precursor: The predominant industrial use, where it is spun and thermally treated to produce high-strength, lightweight carbon fibers for aerospace, automotive, and sporting goods.
• Acrylic Fibers: Production of synthetic fibers for textiles, carpets, upholstery, and outdoor fabrics known for their wool-like feel, colorfastness, and mildew resistance.
• Membrane Technology: Used in the manufacture of ultrafiltration and microfiltration membranes for water treatment, gas separation, and dialysis applications.
• Adsorbent Materials: Basis for creating polymeric adsorbents and ion-exchange resins used in chemical purification and recovery processes.
• Composite Materials: Reinforcement agent in polymer composites to enhance mechanical strength, thermal stability, and chemical resistance.
• Specialty Coatings & Binders: Component in high-performance coatings, adhesives, and binders requiring excellent durability and environmental stability.

Basic Information

Product Name	Polyacrylonitrile
CAS No.	25014-41-9
Molecular Formula	(C₃H₃N)ₙ
Molecular Weight	~53.06 (monomer unit)
Synonyms	PAN; Poly(1-acrylonitrile); Poly(acrylonitrile); 2-Propenenitrile, homopolymer; Acrylonitrile polymer; Acrylonitrile resin; Cyanopolyethylene; Nitrile polyfiber precursor; Orlon (trade name precursor); Acrylic fiber polymer
EINECS	246-582-9

Quality Control

Our Polyacrylonitrile is manufactured under a stringent quality management system. Each batch is tested to ensure consistent properties critical for downstream processing, including molecular weight distribution, viscosity, and residual monomer content. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all relevant specifications to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame. The material is generally stable under recommended storage conditions.

Specification

Item	Specification
Appearance	White to off-white powder or fiber
Identification (IR)	Conforms to structure
Assay (as polymer)	≥ 98.0%
Residual Acrylonitrile Monomer	≤ 100 ppm
Moisture Content	≤ 1.0%
Viscosity (Inherent)	1.2 - 2.5 dl/g (Typical)
Ash Content	≤ 0.1%

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