The polymer chain of polyisoprene-based unsaturated polyolefin contains only isolated double bonds, and is not a conductive high polymer, but it has the advantages of good mechanical properties, good solubility, flexibility, and easy processing. In recent years, it has been found that such an unsaturated polyolefin and iodine are subjected to an addition reaction under an action of an organic solvent such as toluene or cyclohexane, and then a conjugated double bond can be introduced by removing HI [reaction formula (1)]. The sticky mat thus obtained has a conductivity of up to 10. /m. It was found by ultraviolet/visible spectroscopy that the conjugated segment and the free iodine in the sticky roller formed an electron transfer complex. X-ray small angle scattering analysis showed that the polyisoprene chain had a tendency to change from random coil to rod structure as the reaction progressed. It has also been found that cis 1,4 polybutadiene is not electrically conductive. Conversely, trans 1,4-polybutadiene reacts with iodine under the same conditions to produce a conjugated structure. Using this phenomenon and the photochemical cis-trans isomerization of olefins, Dai Liming and others have successfully produced micron-sized conductive polymer patterns.
Electron-conducting and ion-conducting polymer materials are conductive high-mass materials that have been developed for more than a decade, and each of them has a wide range of uses. If these two conductive materials are blended, they can have their own functions and complement each other to perform some special functions. For example, they can be used as an electrode material and an electrolyte material for an all-plastic secondary battery, respectively. The polymer solid ion conductor material using such a sticky mat must have as low electrical conductivity as possible. When an electrode of a secondary battery is fabricated using an electronic conductive polymer such as polyaniline, a small amount of a polymer solid ion conductor is added, which not only improves the film forming performance of the sticky mat, but also improves the electrical properties of the electrode. Another example is that in order to achieve a high switching rate for organic transistor polymer electrochromic displays and molecular circuit components, it is necessary to develop a new function of both electronic and high-speed polymer ion-conductors. Dust roller material.
Regarding blends of electronic conductive polymers and common high polymers such as polyvinyl chloride, polyamide, polystyrene, polyolefin, polyvinyl alcohol and polymethyl methacrylate, many research results have been published. And some of them have entered the stage of industrialization. These sticky mats use conductive polymers to improve the electrical properties of ordinary polymers to expand the range of applications of the latter. In the past ten years, many people have developed composite materials of conductive polymers and insulating polymers in order to improve the mechanical properties of sticky roller materials. Research on electronic conductive polymer and polymer solid ion conductor sticky roller materials has only been reported in recent years. DwDQDEH et al. use a network polymer material in which an alkali metal salt is dissolved as a solid electrolyte, and the monomeric pyrrole is infiltrated into a polymer solid electrolyte by adsorption of a gaseous monomer or by a micro syringe, and then electrochemical polymerization of pyrrole is carried out. A polypyrrole polymer electrolyte two-layer composite material is produced in situ. Another person uses a platinum plate coated with a polymer solid ion conductor film as a working electrode to carry out electrochemical polymerization of aniline to obtain a polyaniline polymer solid ion conductor double layer composite film. Electron type and ion of high molecular weight polyaniline and multi-block polyether urethane urea-lithium perchlorate were prepared by using soluble high molecular weight polyaniline and multi-block polyether urethane urea-lithium perchlorate complex. Conductive polymer composite film.
