使用基于醌的氯腈/ H +试剂作为可循环使用的有机(无金属)氧化剂体系,可以显示出多种芳基胺进行氧化C-C键形成,以提供联苯胺/萘啶。设计了具有各种取代基的芳胺(3°/ 2°)用于理解氧化二聚作用的空间和电子偏好,并提出了涉及胺自由基阳离子的机理。通过氧化CC偶联获得的四苯基联苯胺衍生物已通过简单的化学转化进一步转化为发射蓝色光的空穴传输材料。这项研究强调了以简单,经济和有效的方式准备新型HTM。
An imaging member comprising a first layer of electrically active charge transport material contained on a supporting substrate, a photoconductive layer overlying said active layer, and a second layer of electrically active charge transport material overlying said photoconductive layer, said photoconductive layer exhibiting the capability of photogeneration of charge carriers and injection of said charge carriers, one of said electrically active layers which comprises an electrically inactive resinous material made electrically active by the addition of certain activating compounds thereto exhibits the capability of facile hole injection and transport and the other electrically active layer exhibits the capability of facile electron injection and transport.
Imaging member having a polycarbonate-biphenyl diamine charge transport
申请人:Xerox Corporation
公开号:US04115116A1
公开(公告)日:1978-09-19
A photosensitive member having at least two electrically operative layers is disclosed. The first layer comprises a photoconductive layer which is capable of photogenerating holes and injecting photogenerated holes into a contiguous charge transport layer. The charge transport layer comprises an electrically inactive organic resinous material containing from about 15 to about 75 percent by weight of N,N'-diphenyl-N,N'-bis(phenylmethyl)-[1,1'-biphenyl]-4,4'-diamine. The charge transport layer while substantially non-absorbing in the spectral region of intended use is "active" in that it allows injection of photogenerated holes from the photoconductive layer, and allows these holes to be transported through the charge transport layer. This structure may be imaged in the conventional xerographic mode which usually includes charging, exposure to light and development.
Imaging members with charge transport layers containing high performance polymer blends
申请人:Xerox Corporation
公开号:EP0918258A2
公开(公告)日:1999-05-26
Disclosed is an imaging member which comprises a conductive substrate, a photogenerating material, a charge transport material, and a polymeric binder comprising (a) a first polymer comprising a polycarbonate, and (b) a second polymer of the formulae I, II, III, IV, V, VI, VII, VIII, IX, or X as further defined herein.
本发明公开了一种成像元件,它包括导电基板、光生成材料、电荷传输材料和聚合物粘合剂,聚合物粘合剂包括(a)由聚碳酸酯组成的第一种聚合物和(b)本文进一步定义的式 I、II、III、IV、V、VI、VII、VIII、IX 或 X 中的第二种聚合物。
Photoconductive imaging members
申请人:Xerox Corporation
公开号:EP1172700A2
公开(公告)日:2002-01-16
A photoconductive imaging member containing a photogenerating layer comprised of a mixture of perylenes, wherein the mixture comprises, for example, (1) 1,3-bis(n-pentylimidoperyleneimido) propane (Formula A), 1,3-bis(2-methylbutylimido peryleneimido)propane (Formula B) and 1-(n-pentylimidoperyleneimido)-3-(2-methylbutylimidoperyleneimido)-propane (Formula C), and (2) an electron acceptor component
Formula A
1,3-bis(n-pentylimidoperyleneimido)propane
Formula B
1,3-bis(2-methylbutylimidoperyleneimido)propane
Formula C
1-(n-pentylimidoperyleneimido)-3-(2-methylbutylimidoperyleneimido)propane
一种光电导成像构件,包含一个由过烯混合物组成的光生成层,其中混合物包括,例如,(1)1,3-双(正戊基亚胺基过亚甲基亚胺基)丙烷(式 A)、1,3-双(2-甲基丁基亚胺基过亚甲基亚胺基)丙烷(式 B)和 1-(正戊基亚胺基过亚甲基亚胺基)-3-(2-甲基丁基亚胺基过亚甲基亚胺基)丙烷(式 C),以及(2)一种电子受体组分。
式 A
1,3-双(正戊基亚胺基过二亚酰亚胺基)丙烷
式 B
1,3-双(2-甲基丁基亚胺基过亚甲基亚胺基)丙烷
式 C
1-(正戊基亚氨酰亚胺基)-3-(2-甲基丁基亚氨酰亚胺基)丙烷
Branched polyarylene ethers and processes for the preparation thereof
申请人:Bender P. Timothy
公开号:US20050208416A1
公开(公告)日:2005-09-22
Disclosed is a process for preparing branched polyarylene ether polymers by (A) providing a reaction mixture comprising (i) a polyfunctional phenol compound of the formula Ar(OH)
x
wherein x≧3 and wherein Ar is an aryl moiety or an alkylaryl moiety, provided that when Ar is an alkylaryl moiety at least three of the —OH groups are bonded to an aryl portion thereof, (ii) a compound of the formula
wherein m is 0 or 1, Y and Y′ each, independently of the other, is fluorine or chlorine, and A is as defined herein, (iii) a compound of the formula
wherein B is as defined herein, and (iv) a carbonate base; and (B) heating the reaction mixture and removing generated water from the reaction mixture, thereby effecting a polymerization reaction. Also disclosed are polymers prepared by this process and imaging members containing these polymers.
本发明公开了一种用于制备支化聚芳醚聚合物的工艺,其方法是 (A) 提供一种反应混合物,该混合物包含 (i) 式为 Ar(OH)的多官能团苯酚化合物
x
式中 x≧3,Ar 为芳基或烷基芳基,条件是当 Ar 为烷基芳基时,至少有三个 -OH 基团与芳基部分键合,(ii) 式中化合物
其中 m 为 0 或 1,Y 和 Y′各自独立地为氟或氯,A 如本文所定义,(iii) 式化合物
其中 B 如本文所定义,和 (iv) 碳酸碱;和 (B) 加热反应混合物并从反应混合物中除去生成的水,从而实现聚合反应。还公开了通过该工艺制备的聚合物和含有这些聚合物的成像部件。