Periodic structured organic films

Abstract

An ordered structured organic film comprising a plurality of segments and a plurality of linkers arranged as a covalent organic framework, wherein the structured organic film may be a multi-segment thick structured organic film.

What is claimed is: 
     
         1 . A process for preparing a structured organic film (SOF) comprising:
 (a) preparing a liquid-containing reaction mixture comprising:
 a first solvent, 
 a second solvent, and 
 a plurality of molecular building blocks each of the plurality of molecular building blocks being either a segment or linker; 
   (b) forming a pre-SOF from the plurality of molecular building blocks;   (c) depositing the formed pre-SOF as a wet film on a substrate; and   (d) promoting a change of the wet film to a dry film comprising the SOF as a covalent organic framework (COF), wherein at a macroscopic level the covalent organic framework is a film;
 wherein the SOF is periodic as determined by two-dimensional X-ray scattering. 
   
     
     
         2 . The process of  claim 1 , wherein the at least one of the molecular building blocks comprises at least one atom that is not carbon. 
     
     
         3 . The process of  claim 1 , wherein forming the pre-SOF comprises heating. 
     
     
         4 . The process of  claim 1 , wherein forming the pre-SOF comprises irradiating with UV radiation. 
     
     
         5 . The process of  claim 1 , further comprising removing the SOF from the substrate to obtain a free-standing SOF. 
     
     
         6 . The process of  claim 5 , further comprising processing the free-standing SOF into a roll. 
     
     
         7 . The process of  claim 1 , further comprising cutting and seaming the SOF into a belt. 
     
     
         8 . The process of  claim 1 , comprising repeating the steps in SOF formation one or more times, wherein the substrate at each iteration is a prior fabricated SOF. 
     
     
         9 . The process of  claim 1 , wherein promoting a change of the wet film to a dry film comprising the SOF comprises heating to remove the first solvent, the second solvent, or both. 
     
     
         10 . The process of  claim 1 , wherein a catalyst is used in forming the pre-SOF. 
     
     
         11 . The process of  claim 1 , wherein the wet film has a viscosity of about 50 cps to about 1000 cps. 
     
     
         12 . A process for preparing a structured organic film (SOF) comprising:
 (a) preparing a liquid-containing reaction mixture comprising:
 a first solvent, 
 a second solvent, and 
 a plurality of molecular building blocks each of the plurality of molecular building blocks being either a segment or linker; 
   (b) forming a pre-SOF from the plurality of molecular building blocks;   (c) depositing the formed pre-SOF as a wet film on a substrate,
 wherein the substrate is a prior fabricated SOF; and 
   (d) promoting a change of the wet film to a dry film comprising the SOF as a covalent organic framework (COF), wherein at a macroscopic level the covalent organic framework is a film;
 wherein the SOF is periodic as determined by two-dimensional X-ray 
   
     
     
         13 . The process of  claim 12 , wherein the at least one of the molecular building blocks comprises at least one atom that is not carbon. 
     
     
         14 . The process of  claim 12 , wherein forming the pre-SOF comprises heating. 
     
     
         15 . The process of  claim 12 , wherein forming the pre-SOF comprises irradiating with UV radiation. 
     
     
         16 . The process of  claim 12 , further comprising removing the SOF from the substrate to obtain a free-standing SOF. 
     
     
         17 . The process of  claim 16 , further comprising processing the free-standing SOF into a roll. 
     
     
         18 . The process of  claim 12 , further comprising cutting and seaming the SOF into a belt. 
     
     
         19 . The process of  claim 12 , wherein promoting a change of the wet film to a dry film comprising the SOF comprises heating to remove the first solvent, the second solvent, or both. 
     
     
         20 . The process of  claim 12 , wherein a catalyst is used in forming the pre-SOF.