TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The solvent is chosen from water, alcohol, dimethylformamide (DMF), dimethyl sulfoxide, toluene, xylene and chlorobenzene. The polymer composition further contains physical or chemical crosslinking agent. The physical crosslinking agent is chosen from glycerol, butanol, polyvinyl alcohol, polyethylene glycol, polyethyleneimine and polyvinyl pyrrolidone. The chemical crosslinking agent is chosen from tetraethyloxysilane, polyaziridine, melamine polymer and epoxy group polymer. The content of physical and chemical crosslinking agents is 0.001-5 parts weight and 0.001-50 parts weight, respectively.    TECHNOLOGY FOCUS - POLYMERS - Preferred Method: The conductive polymer is obtained by polymerizing polyaniline, polyphenylene, polyphenylene vinylene, polypyrrole, thiophene and monomers of formulae (II) and (III). The polymer is further obtained by polymerizing cyclic monomer of formula (IV).X'=NH, N, O, S, P, or 1-20C alkyl or 6-20C aryl (both optionally substituted);R9-R12=H, 1-30C alkyl, 1-30C heteroalkyl, 1-30C alkoxy, 1-30C heteroalkoxy, 6-30C aryl, 6-30C arylalkyl, 6-30C aryloxy, 6-30C arylamine, 6-30C pyrrole, 6-30C thiophene, 2-30C heteroaryl, 2-30C heteroarylalkyl, 2-30C heteroaryloxy, 5-20C cycloalkyl, 2-30C heterocycloalkyl, 1-30C alkylester, 1-30C heteroalkyl ester, 6-30C arylester or 2-30C heteroaryl ester;R13,R14=NH, N, O, S, P, 1-20 alkyl, 6-20C aryl, 1-30C alkoxy, 1-30C heteroalkyl, 1-30C hetero alkoxy, 6-30C arylalkyl, 6-30C aryloxy, 6-30C arylamine, 6-30C pyrrole, 6-30C thiophene, 2-30C heteroaryl, 2-30C heteroarylalkyl, 2-30C heteroaryloxy, 5-20C cycloalkyl, 2-30C heterocycloalkyl, 1-30C alkylester, 1-30C heteroalkyl ester, 6-30C arylester or 2-30C heteroaryl ester;X",Y"=X';m1,n1=0-9;Z=-(CH2)xCR15R16-(CH2)y;R15,R16=H, 1-20C alkyl, 6-14C aryl or -CH2-OR17;andR17=H, 1-6C alkyl, 1-6C alkylester, 1-6C heteroalkyl or 1-6C alkyl sulfonic acid. Preferred Definitions:    C'=groups of formulae (i)-(iv);    any one of R5-R8=1-30C alkylene, 1-30C heteroalkylene, 1-30C alkoxylene, 1-30C hetero alkoxylene, 6-30C arylene, 6-30C arylalkylene, 2-30C heteroarylene, 2-30C heteroarylalkylene, 5-20C cycloalkylene or 2-30C heterocyclo alkylene (all optionally substituted), and remainder is R1;    X=fluoro, chloro, bromo, iodo, BF4, PH6, or (CnF2n"+1SO2)2N;    n"=1-50;    Y'=-CH2-, CR'R"-, -NH-, -NR'-, -O-, -P-, -P=O-, -S- or SR'R"-;    R',R"=H, or 3-20C heteroaryl, 1-10C alkyl or 6-20C arylalkyl (all optionally substituted);    h=1-3;    i=1-8;    j=1-10;and    k,l=1-4.