共轭聚合物吧 关注:1贴子:23
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导电聚_3_4_乙烯二氧噻吩_复合物的合成及基于有机表面的图案化_梁杰


IP属地:美国1楼2020-11-04 01:10回复
    the mechanism of electropolymerization is still not clarified, while there is an explaination has been widely accepted. First, the mononers were oxidized to radical cations, and two radical cations combined and generated a dimer. Then, the generated dimers were further oxidized to radical cations and combined. The repeated steps made the polymer chain gradually grow up until the end of polymerization.
    The origin discription is "micellar medium" and applied in aqueous system.
    While the production scale of electropolymerization is very limited by the area of electrodes. And owing to the deproton(去质子化)during the synthesis process, there would be an acidic enviroment appeared around anode, which could be more sevre with polymer aggragated and may lead to the corrision of the electrode.
    The obtained polymer membrene 。。。and equipped with high electronic conductivity, transparency and preferrable mechanical strength.
    VPP: PECVD
    oCVD


    IP属地:美国2楼2020-11-04 16:47
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      With a rapidly development, vapor phase polymerization has been applied into various fields for preparing conducting polymer. During the VPP synthesis process, the polymer aggragated between the interface of mononer gasous and oxidants aqueous. The procedure can be discribed as two steps, the first is casting the oxidants solution on the substrate, then exposing it into the monomer vapor for directly deposition with regardless of the soluablility of polymer. The final products can be modified by monomers and oxidants, through their types, concentrition and flow rate, etc. There are numbers of oxidants have been selected during the synthesis process, however, Fe(Tos)3 has always been the top player for most of the polymerizing reaction since it has been reported by Winther-Jensen for the first time, the synthesized PEDOT membrene equipped with electrical conductivity more than 1000 S cm-1. It should be noticed that additives utilization such as 【piding】and 【XXX】is necessary for balencing the acidic enviroment caused by parasite reaction in oxidant solution. VPP process served a relative simple method to synthesis polymer with extreme high conductivity. Cho adopted nano-模板 as substrate and deposited polymer with conductivity more than 8000 S/cm.


      IP属地:美国3楼2020-11-05 17:50
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