Which from following polymers is used as wool substitute?

Step-by-step solution

Polyacrylonitrile (PAN) serves as a wool substitute due to its similar tactile properties: warmth, soft texture, and resistance to moths and chemicals. Marketed under names like Orlon and Acrilan, it appears in sweaters, blankets, and carpets. Glyptal is a polyester resin for paints, Terylene a durable polyester fiber for fabrics, and Neoprene a synthetic rubber for industrial uses. None exhibit wool-like characteristics.