Macroporous-structured polymer aerogels

An evaporative air dried and thermally dried macroporous-structured polymeric material in the form of a film having an organic polymeric matrix with an average pore size of 100 nanometer (nm) to 800 nm, wherein at least 50% of the polymeric material's pore volume is made up of pore sizes greater than 100 nm, wherein the polymeric material is not-crosslinked, and wherein the evaporative air drying is at a temperature of 20° C. to 30° C. and the thermal drying is at a temperature of at least 50° C.