申请人:Xerox Corporation
公开号:US06287737B1
公开(公告)日:2001-09-11
A photoconductive imaging member comprised of a supporting substrate, a hole blocking layer thereover, a photogenerating layer and a charge transport layer, and wherein the hole blocking layer is comprised of a crosslinked polymer derived from the reaction of a silyl-functionalized hydroxyalkyl polymer of Formula (I) with an organosilane of Formula (II) and water
wherein A, B, D, and F represent the segments of the polymer backbone; E is an electron transporting moiety; X is selected from the group consisting of halide, cyano, alkoxy, acyloxy, and aryloxy; a, b, c, and d are mole fractions of the repeating monomer units such that the sum of a+b+c+d is equal to 1; R is alkyl, substituted alkyl, aryl, or substituted aryl; and R1, R2, and R3 are independently selected from the group consisting of alkyl, aryl, alkoxy, aryloxy, acyloxy, halogen, cyano, and amino, subject to the provision that two of R1, R2, and R3 are independently selected from the group consisting of alkoxy, aryloxy, acyloxy, and halide.
一种光电成像元件,包括支撑基底、其上的阻挡孔层、光发生层和电荷传输层,其中所述阻挡孔层由公式(I)的硅基官能化羟基聚合物与公式(II)的有机硅烷及水反应得到的交联聚合物组成,其中A、B、D和F代表聚合物骨架的片段;E是电子传输基团;X选自卤、氰、烷氧基、酰氧基和芳氧基的群;a、b、c和d是重复单体单位的摩尔分数,使得a+b+c+d之和等于1;R是烷基、取代烷基、芳基或取代芳基;R1、R2和R3独立地选自烷基、芳基、烷氧基、芳氧基、酰氧基、卤素、氰基和氨基的群,但要求其中两个R1、R2和R3独立地选自烷氧基、芳氧基、酰氧基和卤素的群。