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Leistungen
We will study the effects of particle characteristics length aspect ratio flexibility on single particle Brownian dynamics i Single rod dynamics in highly ordered phases ii Effect of nearby phase transitions on the collective dynamics Novel theoretical models will be applied using a grand canonical description mimicking the experiments Experiments on cellulose and thermoresponsive rods to approach phase transitions will provide validation of the modelling using highspeed cameras to capture so far inaccessible relevant times scales
Directing the meso-phase structure by shear flow (öffnet in neuem Fenster)Large oscillatory strains and steady shear flow will be applied to study shear-induced alignment of isotropic states and the distortion and melting of ordered LC phases.
Directing structure via chirality (öffnet in neuem Fenster)We will study the competition between chiralityinduced twist and longrange positional order on the cholesteric phase and the structure of higherorder liquid crystalline states by tuning the molecular chirality using mixtures of two mutants with opposite chiral handedness in combination with Xray scattering and fluorescence microscopy
Understanding the molecular origin of dynamically percolated states (öffnet in neuem Fenster)We investigate i The kinetic pathways that dominate temporal network formation in dispersions of rodlike particles ii If translational andor rotational motion provide the main route towards buildup and breakdown of cluster networks iii The structure of the clusters for various types of interaction and external fields including flow iv Whether the proximity to LC phases impacts upon the cluster size and structure and if this affects the percolation threshold We will use simulations dynamical connectedness percolation theory and in experiment a combination of dielectric spectroscopy optical microscopy rheology and radiation scattering
Final report on WP1.2 and 1.3 (öffnet in neuem Fenster)Final report on sub-WPs 1.2 and 1.3; This is a follow-up on deliverables D1.3-1.5
Control of structure via confinement and quantification of the dynamics (öffnet in neuem Fenster)We will study the competition between Frank elasticity surface anchoring and interfacial tensions via confinement and study the underlying dynamics
Properties of the IN interface of entropy-dominated systems (öffnet in neuem Fenster)Create isotropic and nematic droplets to control the interplay between surface tension and Frank elasticity beyond the predetermined IN structures using microfluidics Probe the structural behaviour of LC interfaces to understand interface behaviour of entropydominated systems
State diagram of the arrested states (öffnet in neuem Fenster)We will measure a state diagram for glass and gel formation as a function of rod characteristics and interactions The experimental systems provide tuneable repulsive and attractive interactions
Quantifying and controlling dynamics through interactions and concentration (öffnet in neuem Fenster)We will study effect of system characteristics interactions concentration on structure and single particle Brownian dynamics i Single rod dynamics in highly ordered phases ii Effect of nearby phase transitions on the collective dynamics Novel theoretical models will be applied using a grand canonical description mimicking the experiments in WP 11 and 21 Experiments on cellulose and thermoresponsive rods to approach phase transitions will provide validation of the modelling using highspeed cameras to capture so far inaccessible relevant times scales
Directing the flow response by tuning particle characteristic (öffnet in neuem Fenster)We will study the effect of polydispersity, flexibility, chirality and frozen in kinks on bulk flow behaviour in different LC phases, comparing results between industrial and model systems.
Completion of supervisory board of the network
Production of thermo-responsive virus-based systems with varying length and flexibility (öffnet in neuem Fenster)We will focus on the development of the following model system Modification of rodlike virus particles such that the thickness can be tuned in situ To this end temperature responsive polymer shells will be grown onto the particles surface The thickness and crosslink density of the polymer layer offers control over the volume fraction and the hardness of the rod particlesThis deliverable will be a physical suspension of colloidal particles in a solvent
Production of thermo-responsive silica rods (öffnet in neuem Fenster)Fluorescently labelled silica particles will be synthesised offering a complimentary nonchiral alternative system to the virus system facilitating the realspace study of selfassembly and phase behaviour also in the presence of other colloidal particles and solvents This deliverable will be a physical suspension of colloidal particles in a solvent
Project identity set in order to facilitate communication and create a visual identity to the project DiStruc logo brochure and a slide template will be createdThe nonconfidential general public area in the DiStruc web portal piloted by FOR will provide general background information which is not currently available in an accessible form to the general public This information will enable interested educators such as high school teachers to integrate recently acquired knowledge into the curriculum early Interested undergraduate students will find information complementing their classes The program therefore will impact on the general public and raise the interest in scientific research from theory to advanced materials thus taking an active role in advertising a career in research to young peopleA restricted domain will be constructed in the web portal to which only the consortium will have accessGiven the mix of PU and CO I have selected the more confidential dissemination level
Veröffentlichungen
Autoren:
Christian Lang, Joachim Kohlbrecher, Lionel Porcar, Minne Lettinga
Veröffentlicht in:
Polymers, Ausgabe 8/8, 2016, Seite(n) 291, ISSN 2073-4360
Herausgeber:
MDPI AG
DOI:
10.3390/polym8080291
Autoren:
Bart de Braaf, Mariana Oshima Menegon, Stefan Paquay, Paul van der Schoot
Veröffentlicht in:
The Journal of Chemical Physics, Ausgabe 147/24, 2017, Seite(n) 244901, ISSN 0021-9606
Herausgeber:
American Institute of Physics
DOI:
10.1063/1.5000228
Autoren:
Maxime M. C. Tortora, Jonathan P. K. Doye
Veröffentlicht in:
The Journal of Chemical Physics, Ausgabe 147/22, 2017, Seite(n) 224504, ISSN 0021-9606
Herausgeber:
American Institute of Physics
DOI:
10.1063/1.5002666
Autoren:
Shari P. Finner, Mihail I. Kotsev, Mark A. Miller, Paul van der Schoot
Veröffentlicht in:
The Journal of Chemical Physics, Ausgabe 148/3, 2018, Seite(n) 034903, ISSN 0021-9606
Herausgeber:
American Institute of Physics
DOI:
10.1063/1.5010979
Autoren:
Andrii Repula, Eric Grelet
Veröffentlicht in:
Physical Review Letters, Ausgabe 121/9, 2018, ISSN 0031-9007
Herausgeber:
American Physical Society
DOI:
10.1103/PhysRevLett.121.097801
Autoren:
Maxime M. C. Tortora, Jonathan P. K. Doye
Veröffentlicht in:
Molecular Physics, Ausgabe 116/21-22, 2018, Seite(n) 2773-2791, ISSN 0026-8976
Herausgeber:
Taylor & Francis
DOI:
10.1080/00268976.2018.1464226
Autoren:
Luuk Metselaar, Amin Doostmohammadi, Julia M. Yeomans
Veröffentlicht in:
Molecular Physics, Ausgabe 116/21-22, 2018, Seite(n) 2856-2863, ISSN 0026-8976
Herausgeber:
Taylor & Francis
DOI:
10.1080/00268976.2018.1496292
Autoren:
Louis B G Cortes, Yongxiang Gao, Roel P A Dullens, Dirk G A L Aarts
Veröffentlicht in:
Journal of Physics: Condensed Matter, Ausgabe 29/6, 2017, Seite(n) 064003, ISSN 0953-8984
Herausgeber:
Institute of Physics Publishing
DOI:
10.1088/1361-648X/29/6/064003
Autoren:
C Lang, L Porcar, H Kriegs, M P Lettinga
Veröffentlicht in:
Journal of Physics D: Applied Physics, Ausgabe 52/7, 2019, Seite(n) 074003, ISSN 0022-3727
Herausgeber:
Institute of Physics Publishing
DOI:
10.1088/1361-6463/aaf40c
Autoren:
Christian Lang, Jan Hendricks, Zhenkun Zhang, Naveen K. Reddy, Jonathan P. Rothstein, M. Paul Lettinga, Jan Vermant, Christian Clasen
Veröffentlicht in:
Soft Matter, Ausgabe 15/5, 2019, Seite(n) 833-841, ISSN 1744-683X
Herausgeber:
Royal Society of Chemistry
DOI:
10.1039/c8sm01925h
Autoren:
Run Li, Marisol Ripoll, Naveen Reddy, Jan K.G. Dhont, Ruben Dierick, Zeger Hens, Christian Clasen
Veröffentlicht in:
Langmuir, Ausgabe 34/48, 2018, Seite(n) 14633-14642, ISSN 0743-7463
Herausgeber:
American Chemical Society
DOI:
10.1021/acs.langmuir.8b02498
Autoren:
Alexis de la Cotte, Cheng Wu, Marie Trévisan, Andrii Repula, Eric Grelet
Veröffentlicht in:
ACS Nano, Ausgabe 11/10, 2017, Seite(n) 10616-10622, ISSN 1936-0851
Herausgeber:
American Chemical Society
DOI:
10.1021/acsnano.7b06405
Autoren:
Maxime M. C. Tortora, Jonathan P. K. Doye
Veröffentlicht in:
The Journal of Chemical Physics, Ausgabe 146/18, 2017, Seite(n) 184504, ISSN 0021-9606
Herausgeber:
American Institute of Physics
DOI:
10.1063/1.4982934
Autoren:
Luuk Metselaar, Ivan Dozov, Krassimira Antonova, Emmanuel Belamie, Patrick Davidson, Julia M. Yeomans, Amin Doostmohammadi
Veröffentlicht in:
Physical Review E, Ausgabe 96/2, 2017, Seite(n) 022706, ISSN 2470-0045
Herausgeber:
American Physical Society
DOI:
10.1103/PhysRevE.96.022706
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