The polyaniline was synthesized by the emulsion polymerization and the polyaniline/polyacrylic acid (PANI/PAA) composite films were prepared through a layer-by-layer method. The porous PAA layer was used as a template for the deposition of PANI, and finally the composite film showed a network structure with large surface area and high porosity. The facile process for preparation of PANI/PAA composite films was good for large-scale production and application. The electrochromic performance of the PANI/PAA composite film was investigated by means of cyclic voltammogram, chronoamperometry and transmittance measurements. The composite film showed three typical redox couples, and the response time for reduction and oxidation was 90 and 102 ms, respectively. The PANI/PAA films also exhibited remarkable electrochromism ability with a reversible color change from yellow to purple and a transmittance change from 68 to 27% at 550 nm.
LewisTWWallaceGGSmythMR.Electrofunctional polymers: their role in the development of new analytical systems. Analyst1999; 124: 213–219.
2.
SomaniPRRadhakrishnanS. Electrochromic materials and devices: present and future. Mater Chem Phys2003; 77: 117–133.
3.
MonkPMSMortimerRJRosseinskyDR. Electrochromism and electrochromic devices. Cambridge, UK: Cambridge University Press, 2007.
4.
MortimerRJDyerALReynoldsJR. Electrochromic organic and polymeric materials for display applications. Displays2006; 27: 2–18.
5.
MontazamiRJainVHeflinJR. High contrast asymmetric solid state electrochromic devices based on layer-by-layer deposition of polyaniline and poly(aniline sulfonic acid). ElectrochimActa2010; 56: 990–994.
6.
ShimGHHanMGSharp-NortonJCCreagerSEFoulgerSH. Inkjet-printed electrochromic devices utilizing polyaniline-silica and poly (3,4-ethylenedioxythiophene)-silica colloidal composite particles. J Mater Chem2008; 18: 594–601.
7.
KimJKwonSIhmDW. Synthesis and characterization of organic soluble polyaniline prepared by one-step emulsion polymerization. Curr Appl Phys2007; 7: 205–210.
8.
MathiyarasuJSenthilkumarSPhaniKLNYegnaramanV. PEDOT-Au nanocomposite film for electrochemical sensing. Mater Lett2008; 62: 571–573.
TungNTKhaiTVLeeHSohnD. The effects of dopant on morphology formation in polyaniline graphite nanoplatelet composite. Synth Met2011; 16: 177–182.
11.
ZhangZMWeiZXWanMX. Nanostructures of polyaniline doped with inorganic acids. Macromolecules2002; 35: 5937–5942.
12.
LuWFadeevAGQiBHSmelaEMattersBRDingJ, et al. Use of ionic liquids for p-conjugated polymer electrochemical devices. Science2002; 297: 983–987.
13.
AchiliasDSRedhwiHHSiddiquiMNNikolaidisAKBikiarisDNKarayannidisGP. Glycolytic depolymerization of PET waste in a microwave reactor. J Appl Sci2010; 118: 3066–3073.
14.
LiuWCholliALNagarajanRKumarJTripathySBrunoFF. The role of template in the enzymatic synthesis of conducting polyaniline. J Am Chem Soc1999; 121: 11345–11355.
15.
JanataJJosowiczM. Conducting polymers in electronic chemical sensors. Nat Mater2003; 2: 19–24.
16.
WatanabeAMoriKIwasakiYNakamuraYNakamuraS. Electrochromism of polyaniline film prepared by electrochemical polymerization. Macromolecules1987; 20: 1793–1796.
17.
JafarzadehSAdhikariASundallPEPanJS. Study of PANI-MeSA conducting polymer dispersed in UV-curing polyester acrylate on galvanized steel as corrosion protection coating. Prog Org Coat2011; 70: 108–115.
18.
CaoYAndreattaAHeegerAJSmithP. Influence of chemical polymerization conditions on the properties of polyaniline. Polymer1989; 30: 2305–2311.
19.
ÖzyIlmazATTükenTYazIcIBErbilM. The electrochemical synthesis and corrosion performance of polyaniline on copper. Prog Org Coat2005; 52: 92–97.
20.
KosteLLMalhotraMK. A theoretical framework for analyzing the dimensions of manufacturing flexibility. J Oper Manag1999; 18:75–93.
WeiLChenQGuYJ. Effects of inorganic acid in DBSA-PANI polymerization on transparent PANI-SiO2 hybrid conducting films. J Alloys Compd2010; 501: 313–316.
25.
HanMGChoSKOhSGImSS. Preparation and characterization of polyaniline nanoparticles synthesized from DBSA micellar solution. Synth Met2002; 126: 53–60.
26.
WuSZZengFLiFXZhuYL. Ammonia sensitivity of polyaniline films via emulsion polymerization. Eur Polym J2000; 366: 679–683.
27.
SungJHKimSJLeeKH. Fabrication of all-solid-state electrochemical microcapacitors. J Power Sources2004; 133: 312–319.
28.
WangYGLiHQXiaYY. Ordered whiskerlike polyaniline grown on the surface of mesoporous carbon and its electrochemical capacitance performance. Adv Mater2006; 18: 2619–2623.
29.
OsterholmJECaoYKlavetterFSmithP. Emulsion polymerization of aniline. Polymer1994; 35: 2902–2906.
30.
LinTHHoKC. A complementary electrochromic device based on polyaniline and poly(3,4-ethylenedioxythiophene). Sol Energy Mater Sol Cells2006; 90: 506–520.
31.
RamMKMaccioniENicoliniC. The electrochromic response of polyaniline and its copolymeric systems. Thin Solid Films1997; 303: 27–33.
32.
AhnKSNahYCSungYE. All-solid-state electrochromic device composed of WO3 and Ni(OH)2 with a Ta2O5 protective layer. Appl Phy Lett2002; 81: 3930–3932.
