The drag of the tails: Diffusion of sticky nanoparticles in dilute polymer solutions

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10319940" target="_blank" >RIV/00216208:11310/15:10319940 - isvavai.cz</a>
Result on the web
<a href="http://scitation.aip.org/content/aip/journal/jcp/143/24/10.1063/1.4935389" target="_blank" >http://scitation.aip.org/content/aip/journal/jcp/143/24/10.1063/1.4935389</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4935389" target="_blank" >10.1063/1.4935389</a>

Result language
angličtina
Original language name
The drag of the tails: Diffusion of sticky nanoparticles in dilute polymer solutions
Original language description
We devise a simple coarse-grained model of a nanoparticle exhibiting attractive interactions with a polymer in good solvent and use Monte Carlo simulations to study how adsorption of the polymer affects the hydrodynamic properties of the nanoparticle. Weshow that the hydrodynamic radius of the polymer-decorated nanoparticle increases with increasing polymer chain length or concentration. The slowdown of diffusion of the sticky nanoparticles is predicted to occur at polymer concentrations many orders ofmagnitude below the overlap concentration, in contrast with the case of non-sticky nanoparticles. To rationalize our findings, we employ the concept of trains, loops, and tails, which has been used in earlier theoretical studies of polymer adsorption atinterfaces. We show that dominant contribution to the increase of the hydrodynamic radius of the polymer-decorated nanoparticles comes from the tails, which stretch far from the surface. On the contrary, the much more numerous but shorte
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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