Polyacrylonitrile

Polyacrylonitrile is a high-purity pharmaceutical-intermediates supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.

Polyacrylonitrile (PAN, CAS 25014-41-9) is a high-performance synthetic polymer used across textiles, advanced materials and separation technologies. Its dominant application is as the precursor for carbon fibers - PAN-based precursors are thermally stabilized and carbonized to produce high-strength, high-modulus fibers used in aerospace, automotive, sporting goods, and wind-turbine composites. In textiles, PAN fibers (often marketed as acrylics) are used for sweaters, outdoor fabrics, carpets and felts because they have wool-like hand, good colorfastness and weather resistance. PAN is widely used to make ultrafiltration and microfiltration membranes and electrospun nanofibers for water treatment, gas separation, and biomedical scaffolds. It also appears in specialty coatings, adhesives, and as a starting material for ion-exchange resins and activated carbons (after suitable treatment) where high surface area and tailored porosity are required. Finally, PAN copolymers and blends are employed to tune mechanical and chemical properties for niche engineering applications.

PAN's value comes from its chemical functionality (nitrile groups) and the material properties that follow. The nitrile moiety gives strong intermolecular interactions that yield good tensile strength, dimensional stability, and solvent/chemical resistance compared with many commodity polymers. Because PAN carbonizes cleanly, it is the preferred precursor for conversion to carbon fiber with excellent tensile modulus and fatigue performance. PAN fibers are lightweight, weather resistant, and readily dyeable - making them attractive for textiles that need colorfastness and outdoor durability. For membranes and electrospun materials, PAN's processability (solubility in common polar solvents, spinnability) and amenability to surface modification enable reproducible pore structures and facile functionalization (hydrophilization, grafting, crosslinking). In coatings and adsorbents, PAN-derived materials can deliver high thermal stability and tunable surface chemistry. Overall, PAN combines mechanical robustness, thermal/chemical resilience, and versatile processing routes, which explains its broad industrial use.

Polyacrylonitrile is a versatile, nitrile-functional polymer whose combination of strength, stability and chemical functionality makes it indispensable from everyday acrylic fibers to advanced carbon-fiber composites and high-performance membranes. Its ease of processing and capacity for post-treatment or conversion (e.g., carbonization, functional grafting) let manufacturers tailor properties for textiles, separation technologies, composites, and specialty adsorbents. If you'd like, I can: (a) provide a side-by-side comparison of PAN vs alternative fiber precursors (pitch, rayon) for carbon-fiber production, (b) outline a typical PAN → carbon fiber conversion process, or (c) make a short table summarizing grades and typical end-uses. Which would help you next?

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