English  |  正體中文  |  简体中文  |  Items with full text/Total items : 70588/70588 (100%)
Visitors : 23037568      Online Users : 504
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version

    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/3519

    Title: 4,4’-雙胺基偶氮苯類化合物及其偶合染料之研究
    Authors: 陳智能;Zhe-Rn Chen
    Contributors: 化學工程與材料工程研究所
    Keywords: G酸;偶氮染料;4, 4'-雙胺基偶氮苯;過硼酸鈉;氧化;4 , 4-diaminoazobenzene;sodium perborate;oxide;azo dye;G acid
    Date: 2000-07-05
    Issue Date: 2009-09-21 12:17:26 (UTC+8)
    Publisher: 國立中央大學圖書館
    Abstract: 以過硼酸鈉或過氧化氫可以氧化一級苯胺縮合為對稱性偶氮苯的化合物,對-乙醯胺基苯胺、對-硝基苯胺及2-羥基-4-硝基苯胺所合成出來的雙乙醯胺基及雙硝基的偶氮苯類化合物經水解或還原成對位雙胺基偶氮苯化合物,如此可以替代致癌性的聯苯二胺作為多偶氮染料的中間體。 合成的雙胺基偶氮苯在酸性下以亞硝酸鈉使雙胺基重氮化,偶合G酸及苯酚形成兩邊非對稱性的三偶氮染料,以取代已被禁用的C.I. Direct Red 39 及C.I. Acid Red 114。另取4,4’-雙胺基二苯 Using sodium perborate or hydrogen peroxide to oxidize the primary amine to corresponding azo compounds . The azo compounds formed by p-acetaminoaniline、p-nitroaniline or 2-hydroxy-4-nitroaniline can be hydrolyzed or reduced to 4,4’-diaminoazobenzene compounds . These diamine compounds can replace the carcinogenic compounds (i.e. Benzidine or its symmetric derivatives) to be some new dye intermediates. The 4,4’-diaminoazobenzene compounds can be formed to diazonium solution , then coupled with G acid and phenol . The produced dye can replace the carcinogenic dyes such as C.I. Direct Red 39 and C.I. Acid Red 114 . In order to compare the properties of the new dye , taking other 4,4’-diamine compounds (i.e. 4,4’-diamino-diphenylsulfone and 4,4’-diamino-diphenylether) to be dye intermediates and also coupling with G acid and phenol .Furthermore , we couple with double G acid or double phenol to see the differences with these new dyes. We also synthesize some mono azo compounds of G acid to distinguish from these bisazo or trisazo compounds of G acid and compare the differences of the maximum absorption wave length of these compounds.
    Appears in Collections:[化學工程與材料工程研究所] 博碩士論文

    Files in This Item:

    File SizeFormat

    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明