Polymer aerogel is a lightweight, highly porous material made from polymers. It is created by replacing the liquid in a gel with gas, resulting in a solid that is mostly air. This unique structure gives polymer aerogels exceptional thermal insulation properties and low density, making them useful in various applications, including insulation and packaging. Due to their high surface area and low weight, polymer aerogels are also being explored for use in environmental cleanup and energy storage. Researchers are continually investigating ways to enhance their properties, aiming to make them even more effective for industrial and commercial uses.