Synthesis and Evaluation of Anionic Copolymeric Surfactant as Dispersing Agent for Some Heterocyclic Azo-Dyes

El-Dougdoug, W. I. A.

doi:10.1080/01932691.2010.506848

Cited by 5 publications

(5 citation statements)

References 28 publications

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“…It can be seen that all the prepared compound have higher stability in acidic media than in basic medium, this may be due the presence of nitrogen atoms which coordinated with the acid forming more cationic center (24)(25) .…”

Section: Stability To Hydrolysismentioning

confidence: 99%

Amphoteric Surface Active Agents with Heterocyclic Ring Based on Industrial Wastes

2011

Egypt. J. Chem.

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Section: Stability To Hydrolysismentioning

confidence: 99%

Amphoteric Surface Active Agents with Heterocyclic Ring Based on Industrial Wastes

2011

Egypt. J. Chem.

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“…However, in case of MPBHM-10 and MPBHM-15, it shows higher surface tension and CMC 0.0536 g/l, 0.0327 g/l because of number of hydrophobic blocks. [35] Data of Surface tension Critical Micelle Concentration of MPBHM are shown in Table 7. Figures 9-11 reveal that the surface tension of MPBHM decreases along with the increase in concentration up to the CMC levels it again constant with surface tension.…”

Section: Ease Of Pigment Dispersionmentioning

confidence: 99%

Design and synthesis of polymeric dispersant for water-borne paint by atom transfer radical polymerization

Lokhande

Jagtap

2016

Designed Monomers and Polymers

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A series of chains of triblock amphiphilic copolymers were synthesized by atom transfer radical polymerization (ATRP) techniques and post modified to polymeric dispersant for waterborne paint. Poly(butyl acrylate (BA))-b-poly(hydroxy ethyl methacrylate (HEMA))-b-poly(methyl methacrylate (MMA)) triblock copolymers having predetermined molecular weights were synthesized by ATRP using CuBr, 2-bromoisobutyrate, and pentamethyldiethylenetriamine as a catalytic system in dioxane at 80 °C. The copolymers were further reacted with cyclic chlorophosphate and triethyl amine to form dispersible modified poly(BA-HEMA-MMA). The synthesized copolymers were structurally evaluated by Fourier transform infrared, 1 H NMR, 31 P NMR, gel permeation chromatography (GPC), energy dispersive X-ray spectroscopy, and their hydroxyl equivalent, respectively. The surface activity of modified copolymers as dispersing additives was investigated by the surface tension analysis and wetting ability test. The ability of additives to function as wetting and dispersing agents was evaluated by analyzing their mechanical, optical, chemical, and rheological properties of water-based paints at different pigment volume concentrations. The effects of the chain length of copolymers on dispersibility and optical properties were studied. The optical properties of paints suggested that the dispersibility of modified poly (BA)-b-poly (HEMA)-b-poly (MMA) (MPBHM) increased with an increase in the molecular weight of the copolymer.

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“…Volume 43 • Number 6 • 2014 • 365-370 Dyeing property of the dispersions for PET fabric Traditional dyeing with disperse dyes for PET fabric is always carried out at slight acidic condition. Because of neutralising reaction and washing, the wet process usually consumes a large amount of water and energy (Metwally et al, 2004;El-Dougdoug, 2010). The alkalinic dyeing method of PET with disperse dyes has been developed (Joonseok, 2006;Peng et al, 2008;Hou et al, 2013).…”

Section: Pigment and Resin Technologymentioning

confidence: 99%

“…Dispersion is one of the most important technologies for the crystals of disperse dyes. Chemical structure, crystal morphology of disperse dyes, the ingredient of dispersing agents and grinding method could affect particle size and stability of the dispersion system (El-Dougdoug, 2010;Ferrero et al, 2011;Xie et al, 2011;Liu et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Crystal morphology, dispersing stability and dyeing property of the disperse dye based on benzisothiazole

Song

Xie

et al. 2014

PRT

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Purpose The purpose of this paper is to synthesise a disperse dye based on benzisothiazole and to characterise its crystal morphology, dispersing stability, to study the relationship between the chemical structure and the dyeing property of the dye. Design/methodology/approach The disperse dye based on benzisothiazole, 3-(3-methyl-4-N-ethyl-N-benzyl-phenyldiazenyl)-5-nitro-2,1-benzisothiazoles, was synthesized. The disperse dye based on benzisothiazole, 3-(3-methyl-4-N-ethyl-N-benzyl-phenyldiazenyl)-5-nitro-2,1-benzisothiazoles, was synthesised. The chemical structure of the dye obtained was characterised by infrared spectrum Fourier transform infrared spectroscopy and nuclear magnetic resonance (1HNMR), and the crystal morphology was observed by Field Emission Scanning Electron Microscopy. Sodium salt of polycondensated naphthalenesulphonic acid (dispersing agent sodium salt of polycondensated naphthalenesulphonic acid [MF]) and a sulphonated amino polyether (anionic surfactant B600) were employed to grind and disperse the dye crystals. The dispersion property of the dye particles was characterised. Dyeing property of the dispersion system was also studied. Findings The dye formed spherical crystals that were made up of a large number of acicular crystals similar to spherical chrysanthemum. The crystals had warping crystal centres inside the spheres. The particle sizes of the dispersion with the mixture of B600 and MF had an uniform distribution and were smaller than that of the dispersion with only single dispersing agent MF. Dyeing with the dispersion system had an excellent reproducibility under alkalinic condition. Practical implications An alkalinic dyeing method for poly(ethylene terephthalate) (PET) with disperse dyes as a cleaner wet process had been developed. Such a process combined pretreatment and dyeing process using the alkali-stable disperse dyes and reduced the consumption of water and energy and improved production efficiency. Originality/value The crystal morphology, dispersion and dyeing properties of the synthesised disperse dye for dyeing PET fabric under alkalinic condition were discussed. This disperse dye has an important potential application in alkalinic dyeing method.

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Synthesis and Evaluation of Anionic Copolymeric Surfactant as Dispersing Agent for Some Heterocyclic Azo-Dyes

Cited by 5 publications

References 28 publications

Amphoteric Surface Active Agents with Heterocyclic Ring Based on Industrial Wastes

Amphoteric Surface Active Agents with Heterocyclic Ring Based on Industrial Wastes

Design and synthesis of polymeric dispersant for water-borne paint by atom transfer radical polymerization

Crystal morphology, dispersing stability and dyeing property of the disperse dye based on benzisothiazole

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