azo coupling机理azo coupling 英文回答: Azo Coupling Mechanism. Azo coupling is a chemical reaction between a diazonium salt and an azo component to form an azo dye. The diazonium salt is typically generated in situ by the reaction of a primary aromatic amine with sodium nitrite in acidic ...
pH dependence and ortho/para ratio in coupling reactions of amino- hydroxynaphthalenesulfonic acids. Dyes Pigm 1988;9:201e7.Diener, H. and Zollinger, H., 1986, "Mechanism of azo coupling reaction part 34. Reactivity of five-membered ring heteroaromatic diazonium ions.", Canadian J. Chem., ...
synthesisofamain-chainphoto-responsiveazopolymerthroughazo-couplingreaction 系统标签: 聚合物偶氮偶合链型azo合成 !2005-07-07收稿,2005-10-28修稿;国家自然科学基金(基金号50273018)资助项目;!!通讯联系人,E-maiI:wxg-dce@maiI.tsinghua.edu.cn重氮偶合方法合成主链型光响应偶氮聚合物!车鹏超和亚宁王晓工!!(清华...
It is therefore necessary to consider (i) the spectroscopy which is an indicator of photochromism and gives information about the reacting state and its generation, and (ii) the mechanism of molecular transformation which may give clues to possible branching points in the photochromic reaction. ...
in the absence of H2O also did not work. Evidently, when 1.0 equivalent of H2O was added to the above reaction system, product3awas obtained in 61% yield. These results indicate that both tetrafluoroborate and H2O are crucial for this transformation (for their roles, see the mechanism section...
Hao and Vicente (2005) discovered zwitterionic carboranylporphyrins (133–134) using pre-formed meso-hydroxyphenyl porphyrins with zwitterionic [3,3’-Co(8-C4H8O2–1,2-C2B9H10)(1′,2’-C2B9H11)] with metal free ring opening reaction mechanism. (Hao et al., 2007; Hao & Vicente, 2005)...
The kinetics and mechanism of a radical chain polymerization reaction initiated from a self-assembled monolayer of an azo initiator attached to the surface... O Prucker,J Rühe - 《Macromolecules》 被引量: 944发表: 1998年 Method for producing azo dye compounds There is disclosed a method for ...
The synthesis of AB2Y-shaped amphiphilic block copolymers by macromolecular azo coupling reaction is reported. The hydrophobic block with the functional group at the end of the polymeric chain was prepared by controlled radical polymerization methods such as RAFT and ATRP. The hydrophilic block with ...
重氮偶合反应合成超支化偶氮聚合物的光响应性能研究 photo-induced dichroism and surface-relief-gratings of hyperbranched azo polymers synthesized by azo-coupling reaction 文档格式: .pdf 文档大小: 197.51K 文档页数: 7页 顶/踩数: 0/0 收藏人数: ...
3) diazo coupling reaction 重氮偶合反应 1. A series of donor accept azobene compounds were synthesized bydiazo coupling reaction. 采用重氮偶合反应合成了一系列给体受体型偶氮化合物,用红外光谱、紫外光谱、元素分析进行表征。 4) diazotization-coupling reaction ...