Static and dynamic properties of block copolymer based grafted nanoparticles across the non-ergodicity transition
| Autor: | Chen Yiang Liu, Yingbo Ruan, Dimitris Vlassopoulos, Emanuela Zaccarelli, José Ruiz-Franco, Daniele Parisi, Benoit Loppinet |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Fluid Flow and Transfer Processes
Physics Scattering Mechanical Engineering Computational Mechanics Nanoparticle FOS: Physical sciences Hard spheres Condensed Matter - Soft Condensed Matter Neutron scattering Condensed Matter Physics 01 natural sciences Viscoelasticity 010305 fluids & plasmas Condensed Matter::Soft Condensed Matter Colloid Mechanics of Materials Chemical physics 0103 physical sciences Copolymer Soft Condensed Matter (cond-mat.soft) 010306 general physics Langevin dynamics CONCENTRATED POLYMER BRUSH PHASE-DIAGRAM STAR POLYMERS SEMIDILUTE SOLUTIONS THERMODYNAMIC PROPERTIES DENSE SUSPENSIONS LIGHT-SCATTERING SELF-DIFFUSION HARD-SPHERES SOFT |
| Zdroj: | Physics of fluids (1994) 32 (2020): 127101-1–127101-15. doi:10.1063/5.0031862 info:cnr-pdr/source/autori:Parisi D.; Ruiz-Franco J.; Ruan Y.; Liu C.Y.; Loppinet B.; Zaccarelli E.; Vlassopoulos D./titolo:Static and dynamic properties of block copolymer based grafted nanoparticles across the non-ergodicity transition/doi:10.1063%2F5.0031862/rivista:Physics of fluids (1994)/anno:2020/pagina_da:127101-1/pagina_a:127101-15/intervallo_pagine:127101-1–127101-15/volume:32 Physics of Fluids |
| DOI: | 10.1063/5.0031862 |
| Popis: | We present a systematic investigation of static and dynamic properties of block copolymer micelles with crosslinked cores, representing model polymer-grafted nanoparticles, over a wide concentration range from dilute regime to an arrested (crystalline) state, by means of light and neutron scattering, complemented by linear viscoelasticity. We have followed the evolution of their scattering intensity and diffusion dynamics throughout the non-ergodicity transition and the observed results have been contrasted against appropriately coarse-grained Langevin Dynamics simulations. These stable model soft particles of the core-shell type are situated between ultrasoft stars and hard spheres, and the well-known star pair interaction potential is not appropriate to describe them. Instead, we have found that an effective brush interaction potential provides very satisfactory agreement between experiments and simulations, offering insights into the interplay of softness and dynamics in spherical colloidal suspensions. Comment: This version corresponds only to the Supporting Information published in "Static and Dynamic Properties of Block-Copolymer Based Grafted Nanoparticles Across the Non-Ergodicity Transition". This information has been attached to the main manuscript, identified as arXiv:2011.06373 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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