All macromolecule that become electronic conductors are called conductive polymer. macromolecule with conjugated 7C electron skeleton, low light conversion energy, low ionization potential and high electron affinity; Or when the chemical structure of macromolecule is changed to make its valence electrons nonlocalized, its conductivity can be increased by several to dozens of orders of magnitude. According to its structure, it can be divided into: ① long conjugate system, for example, polyacetylene is obtained from polymerization catalyzed by a catalyst, and its electric conductivity can be increased by several to dozens of orders of magnitude after halogen doping, entering the range of conductive polymer. It can be made into n-type and p-type films to make primary battery or rechargeable batteries; ② Charge transfer system: when macromolecule donors such as polyethylene pyridine interact with low molecular electron acceptor such as halogens, conductive macromolecule charge transfer complexes are generated; ③ conductive polymer composition system, conductive polymer and insulating macromolecule composition can obtain materials with high conductivity and other excellent properties. composition methods include polymer blending method, electrochemical method and chemical oxidation method. It can be used to transformation various insulating macromolecule into conductive polymer materials^
Organic polymer materials -> Functional polymer materials