## COMPOSITION AND METHOD FOR FORMING ELECTROACTIVE POLYMER SOLUTION OR COATING COMPRISING CONJUGATED HETEROAROMATIC POLYMER, ELECTROACTIVE POLYMER SOLUTION, OBJECTS COMPRISING THE ELECTROACTIVE COATING, AND SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR FABRICATING THE SAME 

## CROSS-REFERENCE TO RELATED APPLICATION 

This application is a continuation-in-part application of and claims the priority benefit of a prior application Ser. No. 14/306,251, filed on Jun. 17, 2014, now allowed. The prior application Ser. No. 14/306,251 is a continuation-in-part application of and claims the priority benefit of a prior application Ser. No. 13/662,533, filed on Oct. 28, 2012, now pending. The entirety of each of the above patent applica› tions is hereby incorporated by reference herein and made a part of this specification. 

## BACKGROUND OF THE INVENTION 

Field of Invention 

This invention relates to conducting polymers, their preparation and their applications, and more particularly relates to a method for forming a conjugated heteroaromatic polymer, to a conjugated heteroaromatic homopolymer or copolymer formed by the method, to a composition for forming an electroactive polymer solution or coating com› prising a conjugated heteroaromatic polymer, to an electro› active polymer solution prepared from the composition, to an electroactive coating prepared from the composition, to a capacitor, an electroactive object, an electronic device, a flexible electronic article, a display, an electrochromic win› dow, a touch panel, a touch screen, a corrosion-preventing coating or a conductive ink printing comprising the electro› active coating prepared from the composition, to a method for forming an electroactive polymer solution or coating using the composition, to a capacitor, an electroactive object, an electronic device, a flexible electronic article, a display, an electrochromic window, a touch panel, a touch screen, a corrosion-preventing coating or a conductive ink printing comprising the electroactive coating prepared from the coating forming method, to a method for fabricating a solid electrolytic capacitor using the coating forming method, and to a solid electrolytic capacitor that is fabricated using the fabrication method. 

Description of Related Art 

During the past few decades, backbone-conjugated con› ducting polymers, such as polyacetylenes, polyanilines, pol› yaromatics, polyheteroaromatics, poly(aromatic vinylene)s and poly(heteroaromatic vinylene )s, have raised great research interests in both industrial and academic commu› nities, because of their great application potentials and their novel electronic, optical, electrooptical, and opto-electronic properties. Conducting polymers have been demonstrated to have great potentials for many important applications, such as antistatic, ESD, EMI-shielding, cable-shielding, radar› shielding, high frequency capacitor, rechargeable battery, anti-corrosion, gas separation membranes, smart window, chemical sensor, bio-sensor, solar cell, light-emitting diode, electrochromic display, field effect transistor, organic memory device, lithography, via-hole electroplating, and nonlinear optical materials. 

Among the conjugated conducting polymers, polyhet› eroaromatics and particularly polythiophenes have attracted great attentions recently due to their easier processability and better thermal stability. Regarding the conventional methods, most of the polyheteroaromatics have been syn› thesized from heteroaromatics via oxidative polymerization either electrochemically or chemically. For example, U.S. Pat. No. 4,697,001 discloses synthesis of polypyrrole from pyrrole via oxidative chemical polymerization using metal- containing oxidant, such as FeCl$_{3 }$ or Fe(OTs)$_{3}$ . 

Polythiophenes have been in general prepared either from 2,5-unsubstituted thiophenes or from 2,5-dihalogenated thiophenes. For example, polythiophene can be prepared from thiophene using metal-containing oxidants such as FeCl$_{3}$ , MoCl$_{5}$ , and RuCl$_{3 }$ (Jpn. J. Appl. Phys. 1984, 23, L899), or from 2,5-dibromothiophene via metal-catalyzed polycondensation polymerization using the combined reagent of Mg metal and Ni(0) catalyst (U.S. Pat. No. 4,521,589). Recently, the metal-catalyzed polycondensation method has been modified by many research groups, such as Reike’s and McCullough’s, for making regioregular poly(3- substituted thiophenes) from 3-substituted 2,5-dibromo› thiophenes using various combination of metal-containing reagents: such as Li/naphthalene/ZnCliNi(II) or Pd(0) com- plex (U.S. Pat. No. 5,756,653), organomagnesium reagent/ Ni(II)-complex (U.S. Pat. No. 6,166,172), organomagne› sium reagent/ZnC1$_{2}$/Ni(II)-complex (U.S. Pat. No. 7,572, 880), and organomagnesium reagent/MnCliNi(II) complex (US 2010/0234478Al ). 

Up to now, there is only one reported prior method of preparing polythiophene from 2-bromothiophenes (U.S. Pat. No. 6,602,974). For example, McCullough indicated that the above regioregular poly(3-substituted thiophenes) can also be made from 3-substituted 2-bromo-thiophene via a three- step reaction by treating the monomer in the first step with a strong base LDA (lithium diisopropylamine, prepared freshly from the reaction of diisopropylamine with n-butyl lithium) under cryogenic temperatures at -40° C. for 40 minutes, followed by the addition of MgBr$_{2 }$ at -60° C. for about 1 hour in the second step, and then by the addition of Ni(II)-complex at -5° C. in the third step, and finally allowed the reaction to proceed at room temperature for additional 18 hours. 

All the above mentioned prior methods have encountered the disadvantage of being contaminated with substantial amount of transitional metal impurities that can cause det› rimental effects to the optimal performance, long term stability, and the lifetime of their application articles and devices. Furthermore, most of the conventional methods involve use of either a strong base (such as organolithium reagent, organomagnesium reagent, and LDA) or a reactive metal (such as activated Zn metal, Mg metal, and Li metal), or in some cases the use of both reagents. These reagents are reactive toward the monomers that contain a proton group having a pKa value of less than about 40 (such as S-H, O-H, N-H, acetylenic proton, a-hydrogen to a carbonyl group or to other electron-withdrawing group, and all the C-H groups except those of alkyl, alkoxy, phenyl, and vinyl) and also reactive toward electrophilic functional groups (such as carbonyl, carbonate, nitrile, imino, nitro, nitroso, sulfoxide, sulfinyl, and sulfonyl, phosphonyl, phos- phinyl, epoxy, alkyl halide, and other similar groups). 

Such reactivity will cause great limitations on the allow› able functional groups appearing on the thiophene mono› mers. Similar limitations would also occur to the conven› tional chemical oxidative polymerization method, wherein the employed strong oxidant causes the undesirable oxida- 

