Preparation Of Conductive Polyaniline Film And Its Application

This assignment is about to improve poor processing.1. We studied separately preparation and properties of in situ PAn composites. In situ PAn-PVC, PAn-PC, PAn-SIR and PAn-PVA composites were prepared by in situ chemically oxidative polymerization of aniline sorbed by PVC, PC, SIR and PVA. Oxidant of ammonium persulfate(APS) or iron chloride were used. The effects oxidant species, chlorhydric acid concentration and polymerization condition on properties of composites were studied. separately. The suitable preparation condition has been determined.2. Stable PAn aqueous dispersions were obtained using PVA as steric stabilizer via dispersion polymerization.3.A conductive PAn is prepared by using dodecyl benzene sulfonic acid (DBSA) as emulsifier and dopant,and APS as oxidative agent.A conductive PAn is synthesized by emulsification through H2O-xylen-DBSA system.The optimum ratio of H2O to xylene is studied.The proper polymerization condition was obtained.The conductive PAn can be solved in the chloroform by using DBSA as dopant.The conductive compositive film was made by the spin method.4.A organic field-effect transistor is fabricated.Its active layer is the organic semiconductive polyaniline obtained by spin.Its insulator layer is silica.The mobility of the device is 9.2×10-4cm2(V·s)-1.There are two innovation in our work:(1)conductive polyaniline composites and conductive polyaniline solution to be prepared will extend their applicability. (2)A organic thin-film transistor is fabricated. Its active layer is the semiconductive polyaniline obtained by spin.