NOVELTY - Preparing (M1) a polymer involves: (a) providing a monomer having group (M) capable of polymerization to form conjugated polymer chain, attached to group (S1) including a double bond whereby it is capable of addition polymerization; (b) causing polymerization of the groups (M), optionally together with a comonomer, to form a conjugated polymer chain; and (c) causing polymerization of the groups (S1), optionally together with a comonomer; where steps (b) and (c) are carried out in either order or simultaneously.    USE - For applying to an article to form a surface coating; and for forming articles comprising the fibers (claimed); and in variety of applications (e.g. conductive layers in electrochemical sensors, fuel cells and batteries, and/or radiation shielding and anti-static layers; corrosion resistant and biocompatible coatings; lithographic patterning of conductive polymer tracks in electrical circuits and microelectronics; microwave protective shielding and filtering coatings for military and domestic applications (Stealth and Radar technologies); conductive fabrics for personal electronics, anti-static clothing, radiation shielding and stealth clothing and protection of static-sensitive electronic devices; coatings for use in electrostatic dissipation in commercial and domestic applications; electroluminescent display devices, i.e. for organic light emitting diode (LED) and flat-panel displays; as photochromic materials for Smart Window technology; as photorecording and photosensitive materials; and invisible inks for novelty and security applications; electroconductive coatings/connections for microelectronics; flexible circuitry for electronics and personal electronics applications; materials for screen-printing; electromagnetic protective shielding materials and coatings, including fabrics and fabric coatings for dissipation of electrostatic charge; sensing materials in sensors and arrays such as gas sensors and optical devices; security marking, machine-readable symbols and barcodes; and chemical sensing and separation technologies).    ADVANTAGE - The method produces polymeric networks containing conjugated and additive polymers, with high conductivity and mechanical, chemical and thermoresistance.    DETAILED DESCRIPTION - Preparing (M1) a polymer involves: (a) providing a monomer of formula M-S1 (I); (b) causing polymerization of the M-groups, optionally together with a comonomer, to form a conjugated polymer chain; and (c) causing polymerization of the S1 groups, optionally together with a comonomer; where steps (b) and (c) are carried out in either order or simultaneously.    M=group capable of polymerization to form a conjugated polymer chain;and    S1=group including a double bond whereby it is capable of addition polymerization.    INDEPENDENT CLAIMS are included for the following:    (1) polymer derivable from monomers comprising the monomers (I); the polymer having conjugated polymer chains as derived from polymerization of the M groups, optionally together with a comonomer; the conjugated polymer chains being cross-linked by linkages as derived from polymerization of the S1 groups, optionally together with a comonomer;    (2) the polymer produced by the method (M1); and    (3) the monomer (I) for use in the method (M1) selected from N-(methacrylamidoethyl)-aniline, N-(acrylamidoethyl)-aniline, N-(methacryloyloxyethyl)-aniline and N-(acryloyloxyethyl)-aniline.