Shear-thinning and isotropic–lamellar–columnar transition in a model for living polymers
| العنوان: | Shear-thinning and isotropic–lamellar–columnar transition in a model for living polymers |
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| المؤلفون: | Abhijit P. Deshpande, P. B. Sunil Kumar, K. R. Prathyusha, Mohamed Laradji |
| المصدر: | Soft Matter. 9:9983 |
| بيانات النشر: | Royal Society of Chemistry (RSC), 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Materials science, Polymers, Flow-induced structures, Boundary interactions, Polymer segments, Potential barriers, Shear flow, chemistry.chemical_compound, Polymer chemistry, Rectangular potential barrier, Lamellar structure, Self-assembling, chemistry.chemical_classification, Shear thinning, Isotropy, General Chemistry, Polymer, Branched network, Condensed Matter Physics, Nonequilibrium state, Condensed Matter::Soft Condensed Matter, Monomer, chemistry, Shear (geology), Chemical physics, Hydrodynamic interaction, Volume fraction |
| الوصف: | A model consisting of short polymer segments, capable of self assembling to form a branched network through the interaction of their ends, is considered. We investigate the mechanistic origins of a shear induced isotropic-lamellar- columnar transition, reported earlier in this model for living polymers. We find that these structures arise only in the presence of a potential barrier in the end point interaction between polymer segments. To elucidate the role played by long range solvent mediated forces, we have carried out simulations with and without the hydrodynamic interactions between the polymers and have seen that these structures are present in both these cases. We also show that the shear induced layering in these systems is a bulk phenomena and boundary interactions have little effect on the transition. The monomer volume fraction and viscosity of the background solvent are shown to have significant effects on determining the morphology of the flow-induced structures. We demonstrate that the structures obtained are indeed non-equilibrium states induced by the shear. � 2013 The Royal Society of Chemistry. |
| تدمد: | 1744-6848 1744-683X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::576f2139637e65361803c1ae34e000bc https://doi.org/10.1039/c3sm51715b |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....576f2139637e65361803c1ae34e000bc |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17446848 1744683X |
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