申请人:NAKAMURA Junji
公开号:US20120022293A1
公开(公告)日:2012-01-26
An object of the present invention is to provide a charge transport material and an electrophotographic photoreceptor using the charge transport material, the charge transport material sufficiently satisfying characteristics conventionally desired for a charge transport material for an electrophotographic photoreceptor, specifically, the charge transport material having a good solubility in a binder polymer, allowing formation of a stable and high-concentration organic thin film therefrom, and having a high carrier mobility. To achieve the object, the present invention provides a tris(4-styrylphenyl)amine derivative represented by the following general formula (1):
wherein R1 represents a methyl group or methoxy group, and R2 represents a hydrogen atom, methyl group, or methoxy group, provided that a case where R1 and R2 are a methyl group and R2 is at the meta-position is excluded; wherein 50% or more of geometrical isomers have three double bonds which are all trans.
本发明的一个目的是提供一种电荷传输材料和使用该电荷传输材料的电子感光光导体,该电荷传输材料充分满足传统上对电子感光光导体的电荷传输材料所需的特性,具体地,该电荷传输材料在粘合剂聚合物中具有良好的溶解性,允许形成稳定且高浓度的有机薄膜,并具有高载流子迁移率。为了实现该目的,本发明提供了一种由下述一般式(1)表示的三(4-芳基苯基)胺衍生物:其中R1代表甲基基团或甲氧基团,R2代表氢原子、甲基基团或甲氧基团,前提是R1和R2均为甲基基团且R2位于间位的情况除外;其中50%或更多的几何异构体具有全部为反式的三个双键。