NOVELTY - A composite comprises an inorganic or organic material disposed in a natural free volume of a polymer matrix. The polymer matrix is at least partially amorphous and comprises a functional group (I). The inorganic or organic material comprises a functional group (A) which is interacted with functional group (I), and a functional group (B) which is bonded to a functionalized compound.    USE - As photoradiation shields and filters, electromagnetic radiation shields and filters, antistatic layers, heterogeneous catalysts, conducting electrodes, flame and heat retardant materials, components in construction of electrolytic cells, fuel cells and opto-electronic devices. Also used in construction of electrochromic or liquid crystal based flat panel displays and electrode and separator materials of high energy density batteries, as electrically conductive imaging layer of electroconductive imaging element, and as coating material for substrate.    ADVANTAGE - The composite have controllable, predictable and reproducible levels of optical densities and electrical, ionic and charged species conductivities. The properties of the polymer matrix in the composite are retained. When the composite is used as coating material of substrate, the permeation of moisture, oxygen or other corrosive chemical through the polymer matrix is prevented and the corrosion of substrate is reduced. The adverse effect of oxygen on the substrate is minimized.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for method for making composite which involves evacuating free volume of polymer matrix, infusing inorganic or organic molecules into the evacuated free volume of polymer matrix and treating the inorganic or organic molecules under conditions effective to cause the inorganic or organic molecules' functional group (A) to react with polymer matrix's functional group (I) but not effective to cause the organic molecules' functional group (B) to interact with functional group (I), and contacting functional group (B) with functionalized compound under preset conditions.