Studies of novel monomeric and polymeric azo disperse dyes

Maradiya, Hari Raghav; Patel, V. S.

doi:10.1002/app.10276

Cited by 19 publications

(10 citation statements)

References 23 publications

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“…They have been used as textile dyes due to excellent performance properties such as leveling, fastness to light and wet treatments, and very good thermal and chemical resistance. They also impart very bright colours [3][4][5]. Other outlets for these dyes are in food coloration, surface coatings, hair dyes [6], solid state laser dyes [7], and jet printing [8,9].…”

Section: Introductionmentioning

confidence: 99%

The Synthesis of Diaminoanthraquinone Coloured Cross Linked Epoxy Resins and Their Application in Paint and Selected Polymers

Salisu¹,

Yakubu²,

Nkeonye³

et al. 2014

OJAppS

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Novel polymeric pigments were synthesized in xylene by cross linked epoxy resin with 1,4 and 1,5-diaminoanthraquinones, by varying weight fractions from 5% to 20% of the diaminoanthraquinone derivatives. FTIR, UV and solubility tests were carried out. The pigments were then used to colour PLA, PMMA, PE and also in emulsion paints using polyvinyl alcohol as binder. Their light fastness, surface drying time and surface hardening time were assessed. It was found that λ max of the 1,4-diaminoanthraquinone shifted towards longer wavelength after the cross linkage, in contrast to the 1,5-diaminoanthraquinone which suffered a blue shift. However in all the cases, the λ max was not affected by the weight fractions of the anthraquinones, but the absorptivity coefficients was significantly increased as the weight fractions of the anthraquinones increased. The light fastness properties of the coloured plastics varied from 4 to 7, indicating a trend of increase with the weight fractions of the anthraquinones. Similar observations were seen with the emulsion paints produced. In all the cases, the 1,4-diaminoanthraqunione produced better result.

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Section: Introductionmentioning

confidence: 99%

The Synthesis of Diaminoanthraquinone Coloured Cross Linked Epoxy Resins and Their Application in Paint and Selected Polymers

Salisu¹,

Yakubu²,

Nkeonye³

et al. 2014

OJAppS

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“…Copolymerization with methyl methacrylate as well as homopolymerization of each dye monomer yielded linear soluble polymers. A different approach is the performance of azo coupling with N-aryl maleimides for the generation of radically polymerizable azo dye derivatives [53,54]. For the preparation of structurally different azo dyes, 2,6-dibromo-4-nitroaniline (see Scheme 1) and 2-amino-3,5-bis(ethoxycarbonyl)-4-methylthiophene were converted into the corresponding diazonium salts.…”

Section: Polymerization Of Colored Monomersmentioning

confidence: 99%

Polymers and Dyes: Developments and Applications

2015

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Amongst functional macromolecules, the combination of polymers and dyes is a research field of great potential with regard to high-performance materials. Accordingly, colored polymers have become increasingly important as materials for miscellaneous technical applications in recent years while also being a major part of everyday life. For instance, dye-containing polymers are nowadays widely applied in medicine, painting industries, analytics and gas separation processes. Since these applications are obviously connected to the dye's nature, which is incorporated into the corresponding polymers, the affinity of certain polymers to dyes is exploited in wastewater work-ups after (textile) dyeing procedures. In this review, we wish to point out the great importance of dye-containing polymers, with a comprehensive scope and a focus on azo, triphenylmethane, indigoid, perylene and anthraquinone dyes. Since a large number of synthetic approaches towards the preparation of such materials can be found in the literature, an elaborated overview of different preparation techniques is given as well.

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“…Various polymeric dyes have been developed by incorporating hydrophilic or hydrophobic chromophores onto a variety of polymers, including polyallylamine, polyethylene polyamine and polyvinylamine . Tang et al invented a polymeric dye by reacting polyallylamine with 2,4‐dinitrochlorobenzene, and achieved a fixation of 99% to cotton and silk with a crosslinking agent.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and dyeing properties of polyvinylamine dyes for cotton

Shan

Tang

Zhang

et al. 2020

Coloration Technology

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Novel polyvinylamine dyes were designed and synthesised from poly(N-vinylformamide-co-vinylamine) and reactive dyes, then used to dye cotton fibres by the dip-pad-steam process, with the dyeing methods being examined in detail. Each polyvinylamine dye was fixed to cotton without a crosslinking agent through covalent bonds formed between the reactive group of the dye and the cotton fibres. A fixation of 99% was achieved, with grades of 4 and 4-5 wash and dry-rub fastness, respectively.

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Studies of novel monomeric and polymeric azo disperse dyes

Cited by 19 publications

References 23 publications

The Synthesis of Diaminoanthraquinone Coloured Cross Linked Epoxy Resins and Their Application in Paint and Selected Polymers

The Synthesis of Diaminoanthraquinone Coloured Cross Linked Epoxy Resins and Their Application in Paint and Selected Polymers

Polymers and Dyes: Developments and Applications

Synthesis and dyeing properties of polyvinylamine dyes for cotton

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