| abstract |
A method of providing electronic shielding comprising providing a layer of a polyaniline composition on the object to be shielded, whereby the entrance and egress of electromagnetic radiation is prevented. Also presented herein is a method of changing the absorption by a polyaniline composition of electromagnetic radiation by modifying the chemical structure and crystallinographic order of the polyaniline composition, wherein said composition comprises a composition of the formula ##STR1## where y can be equal to or greater than zero, and R 1 and R 2 are independently selected from the group consisting of --H, --OCH 3 , --F, --Cl, --Br, --I, --NR 3 2 , --NHCOR 3 , --OH, --O, --SR 3 , --OR 3 , --OCOR 3 , --NO 2 , --COOH, --COOR 3 , --R 3 SO 3 H, --COR 3 , --CHO, and --CN, where R 3 is a C 1 to C 8 alkyl, aryl, or aralkyl group. |