A charge-transporting varnish comprising a solution or dispersion of at least one charge-transporting polymer comprising repeating units represented by the general formula (1) in at least one solvent, wherein the polymer is at least one polymer selected from among polyimide precursors having number-average molecular weights of 1,000 to 100,000 and polyimides obtained by cyclodehydration of the precursors; a charge-transporting varnish comprising a solution or dispersion in at least one solvent of both a charge-transporting substance consisting of a charge-transporting oligoaniline derivative having a number-average molecular weight of 250 to 5,000 or a charge-transporting organic material consisting of the substance and a charge-receiving dopant and at least one charge-transporting polymer comprising repeating units represented by the general formula (1); charge-transporting thin films formed by using the varnishes; and organic electroluminescent devices provided with the thin films: (1) wherein Ar1 to Ar3 are each independently monovalent aryl; Ar4 to Ar7 are each independently divalent aryl; X1 and X2 are each independently a divalent organic group; X3 and X4 are each independently a single bond, -O-, -S-, -C(O)NH-, -NHC(O)-, imino which may be substituted with a monovalent hydrocarbon group, alkylene of 1 to 5 carbon atoms which may have a branched structure, or alkylenedioxo of 1 to 5 carbon atoms which may have a branched structure; n is 0 or a positive integer of 3 or below; and i and j are each independently 0 or 1.
一种电荷传输清漆,包括至少一种由通式(1)代表的重复单元组成的电荷传输聚合物在至少一种溶剂中的溶液或分散液,其中该聚合物为至少一种选自平均分子量为1,000至100,000的聚
酰亚胺前体和通过前体环脱
水得到的聚
酰亚胺的聚合物;电荷传输清漆,包括电荷传输物质在至少一种溶剂中的溶液或分散液,该电荷传输物质由平均分子量为 250 至 5000 的电荷传输低
聚苯胺衍
生物组成,或由该物质和电荷接收掺杂剂组成的电荷传输有机材料,以及至少一种电荷传输聚合物,该聚合物由通式(1)表示的重复单元组成;使用这些清漆形成的电荷传输薄膜;以及使用这些薄膜的有机电致发光器件:(1) 其中 Ar1 至 Ar3 各自独立地为一价芳基;Ar4 至 Ar7 各自独立地为二价芳基;X1 和 X2 各自独立地为二价有机基团;X3和X4各自独立地为单键、-O-、-S-、-C(O)NH-、-NHC(O)-、可被一价烃基取代的亚
氨基、可具有支链结构的1至5个碳原子的亚烷基或可具有支链结构的1至5个碳原子的亚烷基二氧代;n为0或3或以下的正整数;以及i和j各自独立地为0或1。