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The Synthesis and Properties of Some Benzothiazolylazo Dyes

The Synthesis and Properties of Some Benzothiazolylazo Dyes
Author: Adrian Paul Nicholas Hayes
Publisher:
Total Pages: 250
Release: 1974
Genre:
ISBN:

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COLOURFASTNESS, DYEING, DYEING PROPERTIES, SYNTHETIC FIBRES, BENZOTHIAZOLYLAZO DYES, DYES, AMINOBENZOTHIAZOLES, AZO DYES, AMINOAZOBENZENES, SPECTRAL DATA.


The Synthesis and Properties of Some N-substituted Aminoazobenzenes

The Synthesis and Properties of Some N-substituted Aminoazobenzenes
Author: Himanshu P. Mehta
Publisher:
Total Pages:
Release: 1973
Genre:
ISBN:

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AZO DYES, DYES, AMINOAZOBENZENES, COLOURFASTNESS, CHEMICAL STRUCTURE, DYEING, DYEING PROPERTIES, SYNTHETIC FIBRES, DIAZOTISATION, COUPLING COMPONENTS.


The Synthesis of Some Aminoazobenzene and Hetarylazo Disperse Dyes

The Synthesis of Some Aminoazobenzene and Hetarylazo Disperse Dyes
Author: Afsaneh Taebi
Publisher:
Total Pages: 208
Release: 1993
Genre:
ISBN:

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A range of monoazo and disazo dyes based on 4-aminoazobenzene have been prepared. Differences in colour, dyeing and fastness properties between monoazo and disazo dyes have been reported. Their structure-property relationships with respect to the electronic spectra of the dyes, and to their coloration and fastness properties on polyester fibres have been investigated. 2-Amino-4,5-(4,6-; 4,7-; and 5,7-)dichlorobenzothiazoles have been prepared by the cyclisation of the corresponding dichlorophenyl- thiourea with concentrated sulphuric acid and ammonium bromide. The phenylthioureas were obtained from benzoylisothiocyanate and the appropriate amines, and subsequent hydrolysis of the resulting benzothioureas with aqueous sodium hydroxide or sulphuric acid. Coloration and lightfastness evaluations of the dichlorobenzo- thiazolylazo dyes on polyester fibres indicate that they can be viable alternative to anthraquinone based dyes of similar hue. Structure-property relationships with respect to the electronic spectra of the dyes have been investigated.


Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards

Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards
Author:
Publisher:
Total Pages: 494
Release: 1997
Genre: Dissertations, Academic
ISBN:

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Theses on any subject submitted by the academic libraries in the UK and Ireland.


Synthesis and Properties of Some Disazo and Hetarylazo Dyes

Synthesis and Properties of Some Disazo and Hetarylazo Dyes
Author: Chien-Te Wu
Publisher:
Total Pages: 332
Release: 1996
Genre:
ISBN:

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A general survery of the preparation and application of disazo dyes, imidazole dyes, pyrazole dyes and their related intermediates has been made. A range of disazo dyes has been prepared by the synthesis of the ... methanesulphonate salts of aniline and its substituted analogues, and their subsequent coupling reaction in the synthesis of the intermediate monoazo dye followed by a second diazotization and coupling reaction to give the required disazo dyes. Colour-structure relationships are discussed, and PPP MO calculations used to evaluate colour and structure relationships. The synthesis of a series of azo colourants from diazotised arylamines and 4(5)-cyano- 5(4)-hydroxyimidazole is described. The dyes exhibit a large bathochromic shift of the visible absorption maxima relative to analogous dyes derived from carbocyclic coupling components. A series of pyrazolyazo dyes was also synthesized, the hues of which varied from yellow to red. The dyes did not a exhibit bathochromic shift of the visible absorption maxima relative to analogous dyes derived from carbocyclic diazo components, but gave bright hues characteristic of heterocyclic dyes. The colour-structure relationships are discussed.


Potential Industrial Carcinogens and Mutagens

Potential Industrial Carcinogens and Mutagens
Author: L. Fishbein
Publisher: Elsevier
Total Pages: 545
Release: 2011-08-30
Genre: Science
ISBN: 0080874630

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Potential Industrial Carcinogens and Mutagens


The Chemistry and Application of Dyes

The Chemistry and Application of Dyes
Author: David R. Waring
Publisher: Springer Science & Business Media
Total Pages: 423
Release: 2013-11-11
Genre: Science
ISBN: 1468477153

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It is particularly appropriate that a volume concerned with dye chemistry should be included in the series Topics in Applied Chemistry. The development of the dye industry has been inexorably linked not only with the development of the chemical industry but also with organic chemistry itself since the middle of the last century. The position of dye chemistry at the forefront of chemical 1945 and more markedly so during the last advance has declined somewhat since 15 years, with pharmaceutical and medicinal chemistry assuming an increasingly prominent position. Nevertheless, dye production still accounts for a significant portion of the business of most major chemical companies. The field of dye chemistry has stimulated the publication of many books over the years but surprisingly few have concentrated on or even included the practical aspects of dye synthesis and application. Thus, the present volume is designed to fulfill that need and provide the reader with an account of advances in dye chemistry, concentrating on more recent work and giving, in a single volume, synthetic detail and methods of application of the most important classes, information which will be invaluable to both student and research chemist alike.