TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The process further comprises removing the dry-SOF from the substrate to obtain a free-standing SOF. The step of promoting change of the wet film to form a dry SOF comprises exposing the reaction mixture to infrared radiation (IR), where the duration of the exposure to IR lasts 4 seconds to 24 hours. The liquid-containing reaction mixture is deposited on the substrate using a liquid deposition technique comprising spin coating, blade coating, web coating, dip coating, cup coating, rod coating, screen printing, ink jet printing or spray coating. Preferred Components: Each building block comprises a segment and a number of functional groups. The liquid-containing reaction mixture further comprises: a catalyst comprising Bronsted acids, Lewis acids, Bronsted bases, Lewis bases, free radical initiators or transition metal complexes; a first solvent; and a second solvent. The dry-SOF: is a film at a macroscopic level; comprises at least one atom of an element that is not carbon, and is one of hydrogen, oxygen, nitrogen, silicon, phosphorus, selenium, fluorine, boron or sulfur; and comprises a surface with features having a size of 500 nm to 5 mu m. The thickness of the wet film is 10 nm to 5 mm, preferably 100 nm to 1 mm. The first solvent has a boiling point of 80-300 degrees C, which is higher than that of the second solvent. EXAMPLE - 0.47 g Benzene-1,4-dimethanol (as a building block) and 1.12 g of N4,N4,N4',N4'-tetrakis(4-(methoxymethyl)phenyl)biphenyl-4,4'-diamine (as a second building block), and 17.9 g of 1-methoxy-2-propanol were combined. The mixture was shaken and heated to 60 degrees C until a homogenous solution was resulted. Upon cooling to room temperature, the solution was filtered through a 0.45 mu PTFE membrane. To the filtered solution was added an acid catalyst delivered as 0.31 g of a 10 wt.% solution of para-toluenesulfonic acid in 1-methoxy-2-propanol to yield a liquid containing reaction mixture. The reaction mixture was applied to reflective side of a metalized (titanium-zirconium) MYLAR (RTM: Polyethylene terephthalate film) substrate using a constant velocity thaw down coater outfitted with a bird bar having an 8 mil gap. The metalized MYLAR (RTM: Polyethylene terephthalate film) substrate supporting the wet layer was rapidly transferred to an actively vented oven preheated to 130 degrees C and left to heat for 40 minutes to provide a structured organic film (SOF) having a thickness of 3-6 mu . Then, the SOF was delaminated from the substrate as a single free-standing SOF.