Li Xiang-gao
2007
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Journal
Chemical Industry and Engineering
Abstract
In this paper,3,5-dimethyldiphenylamine was firstly prepared by 3,5-dimethylaniline and benzenesulfonic acid sodium salt and the influence of temperature,time and the proportion of reactant on the yield of product were discussed.Then 3,5-dimethyldiphenylamine was reacted with 4,4′-diiodobiphenyl via Ulmann reaction to get N,N′-bis(3,5-dimethylphenyl)-N,N′-diphenyl-[1,1′-biphenyl]-4,4′-diamine,as hole transport material,in yield of 82.24% and in purity of 99.31%.The photoelectric test results of the device showed that the compound had good performance of hole transport.