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Article
Publication date: 1 December 2001

W.I.A. El‐Dougdoug and M.M. Azab

A series of polymeric surfactants based on butylacrylates (M1) as hydrophobe, and amide oxime of oxypropylated acrylates (M2‐4 and 6) as hydrophiles, were prepared by…

236

Abstract

A series of polymeric surfactants based on butylacrylates (M1) as hydrophobe, and amide oxime of oxypropylated acrylates (M2‐4 and 6) as hydrophiles, were prepared by copolymerization of butyl acrylate (M1) and amide oxime of oxypropylated acrylate (M2‐4 and 6) with different molar ratios in presence of benzoyl peroxide as initiator to afford [(P2), (P4) and P6)]ai, respectively as nonionic copolymeric surfactants, in suitable yield. These derivatives were purified and characterized by microanalysis, IR and 1H NMR spectral studies. Surface active properties, corrosion inhibitions and biodegradability were evaluated.

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Pigment & Resin Technology, vol. 30 no. 6
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 1 June 2002

W.I.A. El‐Dougdoug and A.A. Mahmoud

A series of anionic copolymeric surfactants based on n‐octylacrylate ester (M1) as hydrophobe, and sulfated products of oxypropylated allyl alcohol (MS1−S2 and S3) as hydrophiles…

265

Abstract

A series of anionic copolymeric surfactants based on n‐octylacrylate ester (M1) as hydrophobe, and sulfated products of oxypropylated allyl alcohol (MS1−S2 and S3) as hydrophiles, were prepared by copolymerization of n‐octylacrylate (M1) and sulfated products of oxypropylated allyl alcohol (MS1−S2 and S3) with different molar ratio's in presence of benzoyl peroxide as initiator to afforded [(PS1), (PS2) and (PS3)]ai, respectively in suitable yield. These derivatives were purified and characterized by microanalysis, IR and 1H NMR spectral studies. Surface activity, dispersible properties and biodegradability were evaluated.

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Pigment & Resin Technology, vol. 31 no. 3
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 1 February 2005

M.M. Azab and W.I.A. El‐Dougdoug

Preparation of new organotin polymers via a new synthetic route based on the exchange reactions of pentachlorophenyl acrylate or methacrylate with amino‐tri‐phenyltin benzoates or…

473

Abstract

Purpose

Preparation of new organotin polymers via a new synthetic route based on the exchange reactions of pentachlorophenyl acrylate or methacrylate with amino‐tri‐phenyltin benzoates or hydroxyl‐tri‐phenyltin benzoates.

Design/methodology/approach

The pentachlorophenyl acrylate or methacrylate was prepared by polymerisation in solution with azobisisobutyrontrile as a free radical initiator. The polymers obtained were allowed to undergo exchange reactions with amino‐tri‐phenyltin benzoates or hydroxyl‐tri‐phenyltin benzoates. The structure of the polymers prepared was confirmed by IR spectroscopy. Films were prepared from purified organotin polymers solution on glass, PVC and tin plates. The release of tin compound from the films, when immersed in aqueous media, was assessed. The concentration of the released tin (ppm) was measured by atomic adsorption spectrophotometer.

Findings

The new synthetic route was effective, the organotin polymers prepared had good film properties and the release of tin compounds increased with the content of tin in the organotin polymers.

Research limitations/implications

The alkaline resistance of the polymeric films prepared needs improvement.

Practical implications

The polymers prepared provide a family of effective polymeric fungicide useful for a number of applications including water sterilisation.

Originality/value

The polymers prepared contained pendent triphenyltin moieties which slowly hydrolysed to give fungicidal and antifouling effects.

Details

Pigment & Resin Technology, vol. 34 no. 1
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 3 November 2014

Min Li, Kaili Song, Kongliang Xie and Aiqin Hou

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…

247

Abstract

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.

Details

Pigment & Resin Technology, vol. 43 no. 6
Type: Research Article
ISSN: 0369-9420

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