Investigating the effects of different loadings of a nanostructured hyperbranched polymer on the kinetic parameters of disperse dyeing of modified poly(ethylene terephthalate) sheets

Ahani, Mina; Khatibzadeh, Marziyeh; Mohseni, Mohsen

doi:10.1007/s12221-015-0606-8

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…12 Apart from the improvement in dyeability, the blend of this hyperbranched polymer with PET attained higher adsorption properties due to the formation of free volume between chains of PET that is related to the presence of hyperbranched polymer as a modifier. 13,14 Hyperbranched polymers exhibit characteristics that are very different from those of linear polymers, for example, low viscosity, high solubility, and high density of the functional end-groups. 15 These particulate polymers provide various kinds of functional end groups, from hydrophilic to hydrophobic and from reactive to non-reactive.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and characterization of poly(ethylene terephthalate)/hyperbranched polymer nanocomposites by melt blending

2016

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In this paper, nanocomposites of polyethylene terephthalate (PET) including polyesteramide-based hyperbranched polymer, or PET/Hyperbranched polymer nanocomposites, have been prepared via melt blending method with different hyperbranched polymer contents. In addition, morphology, surface structure, and thermal properties of these nanocomposites and virgin PET were studied by atomic force microscopy, attenuated total reflection fourier transform infrared spectroscopy and differential scanning calorimetry (DSC), respectively. Dynamic mechanical analysis experiments in solid state were carried out to follow the effect of hyperbranched polymer on the dynamic mechanical properties of these nanocomposites. The structure of the nanostructured hyperbranched polymer was also studied by small-angle X-ray scattering. The rheometric mechanical spectroscopy results showed that the hyperbranched polymer as a modifier decreased the complex viscosity and enhanced liquid-like behavior. This happened more significantly by increasing the content of hyperbranched polymer. The DSC analysis results revealed that crystallinity and glass transition temperature decreased by adding the amount of hyperbranched polymer.

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Section: Introductionmentioning

confidence: 99%

“…We have previously reported 13,14 the adsorption properties of a disperse dye toward PET sheets modified using various loads of a hyperbranched polymer in terms of thermodynamic and kinetic parameters. According to these findings, the adsorption of the dye on the modified PET sheets was much higher than that of the virgin PET one.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of poly(ethylene terephthalate)/hyperbranched polymer nanocomposites by melt blending

2016

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“…The diffusion properties of disperse dyes on polyester fiber in the infinite dyebath were investigated to determine the diffusion coefficient and the activation energy of diffusion. 1,2 A film is a good substrate for measuring the diffusion coefficients in the steady state. 3 The film-roll method is a useful experimental technique for obtaining the concentration-distance curves easily and has been used mainly in water impregnating systems to evaluate diffusion coefficients of non-ionic dyes in synthetic polymers for a long time to the present.…”

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Diffusion coefficient for diffusion of time-varying surface concentration by the film-roll method

Park

2022

Textile Research Journal

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This research on the sublimation diffusion of disperse dye in print paste to polyethylene terephthalate film was performed at 170–190°C for various times using a film-roll method. It was found that the second layer surface concentrations obtained from the concentration–distance curves were proportional to the square root of time. To determine the diffusion coefficient for the diffusion of the time-varying surface concentrations, the solution of the diffusion equation for the boundary condition of the surface concentration varying with the square root of time was deduced by applying the Laplace transform. Assuming that the time taken for a dye in paste to pass through the first layer is the delay time and the second layer surface is the starting point for diffusion, the diffusion coefficient and the delay time were determined by the proportional constant obtained from the plot of the second layer surface concentrations against the square root of the total time and by the total amount which is the amount that has passed through the second layer surface and is a primary function of time. The diffusion coefficients for the total time were similar to those for the diffusion time excluding the delay time, and their reliability was identified by Arrhenius plots. The activation energy for the diffusion coefficients obtained from the equation deduced by the complementary error function in this study was similar to that for the diffusion coefficients obtained by the complementary error function in three recent studies by about 27 kcal · mol−1.

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Study on Calculation of Diffusion Coefficient for Sublimation Diffusion of Disperse Dye Using Fourier Series

Park

2020

Fibers Polym

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Investigating the effects of different loadings of a nanostructured hyperbranched polymer on the kinetic parameters of disperse dyeing of modified poly(ethylene terephthalate) sheets

Cited by 5 publications

References 19 publications

Preparation and characterization of poly(ethylene terephthalate)/hyperbranched polymer nanocomposites by melt blending

Preparation and characterization of poly(ethylene terephthalate)/hyperbranched polymer nanocomposites by melt blending

Diffusion coefficient for diffusion of time-varying surface concentration by the film-roll method

Study on Calculation of Diffusion Coefficient for Sublimation Diffusion of Disperse Dye Using Fourier Series

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