Deliverables
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 flowLarge 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 chiralityWe 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 statesWe 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 1.3Final 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 dynamicsWe 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 systemsCreate 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 statesWe 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 concentrationWe 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 characteristicWe 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 flexibilityWe 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 rodsFluorescently 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
Publications
Author(s):
Christian Lang, Joachim Kohlbrecher, Lionel Porcar, Minne Lettinga
Published in:
Polymers, Issue 8/8, 2016, Page(s) 291, ISSN 2073-4360
Publisher:
MDPI AG
DOI:
10.3390/polym8080291
Author(s):
Bart de Braaf, Mariana Oshima Menegon, Stefan Paquay, Paul van der Schoot
Published in:
The Journal of Chemical Physics, Issue 147/24, 2017, Page(s) 244901, ISSN 0021-9606
Publisher:
American Institute of Physics
DOI:
10.1063/1.5000228
Author(s):
Maxime M. C. Tortora, Jonathan P. K. Doye
Published in:
The Journal of Chemical Physics, Issue 147/22, 2017, Page(s) 224504, ISSN 0021-9606
Publisher:
American Institute of Physics
DOI:
10.1063/1.5002666
Author(s):
Shari P. Finner, Mihail I. Kotsev, Mark A. Miller, Paul van der Schoot
Published in:
The Journal of Chemical Physics, Issue 148/3, 2018, Page(s) 034903, ISSN 0021-9606
Publisher:
American Institute of Physics
DOI:
10.1063/1.5010979
Author(s):
Andrii Repula, Eric Grelet
Published in:
Physical Review Letters, Issue 121/9, 2018, ISSN 0031-9007
Publisher:
American Physical Society
DOI:
10.1103/PhysRevLett.121.097801
Author(s):
Maxime M. C. Tortora, Jonathan P. K. Doye
Published in:
Molecular Physics, Issue 116/21-22, 2018, Page(s) 2773-2791, ISSN 0026-8976
Publisher:
Taylor & Francis
DOI:
10.1080/00268976.2018.1464226
Author(s):
Luuk Metselaar, Amin Doostmohammadi, Julia M. Yeomans
Published in:
Molecular Physics, Issue 116/21-22, 2018, Page(s) 2856-2863, ISSN 0026-8976
Publisher:
Taylor & Francis
DOI:
10.1080/00268976.2018.1496292
Author(s):
Louis B G Cortes, Yongxiang Gao, Roel P A Dullens, Dirk G A L Aarts
Published in:
Journal of Physics: Condensed Matter, Issue 29/6, 2017, Page(s) 064003, ISSN 0953-8984
Publisher:
Institute of Physics Publishing
DOI:
10.1088/1361-648X/29/6/064003
Author(s):
C Lang, L Porcar, H Kriegs, M P Lettinga
Published in:
Journal of Physics D: Applied Physics, Issue 52/7, 2019, Page(s) 074003, ISSN 0022-3727
Publisher:
Institute of Physics Publishing
DOI:
10.1088/1361-6463/aaf40c
Author(s):
Christian Lang, Jan Hendricks, Zhenkun Zhang, Naveen K. Reddy, Jonathan P. Rothstein, M. Paul Lettinga, Jan Vermant, Christian Clasen
Published in:
Soft Matter, Issue 15/5, 2019, Page(s) 833-841, ISSN 1744-683X
Publisher:
Royal Society of Chemistry
DOI:
10.1039/c8sm01925h
Author(s):
Run Li, Marisol Ripoll, Naveen Reddy, Jan K.G. Dhont, Ruben Dierick, Zeger Hens, Christian Clasen
Published in:
Langmuir, Issue 34/48, 2018, Page(s) 14633-14642, ISSN 0743-7463
Publisher:
American Chemical Society
DOI:
10.1021/acs.langmuir.8b02498
Author(s):
Alexis de la Cotte, Cheng Wu, Marie Trévisan, Andrii Repula, Eric Grelet
Published in:
ACS Nano, Issue 11/10, 2017, Page(s) 10616-10622, ISSN 1936-0851
Publisher:
American Chemical Society
DOI:
10.1021/acsnano.7b06405
Author(s):
Maxime M. C. Tortora, Jonathan P. K. Doye
Published in:
The Journal of Chemical Physics, Issue 146/18, 2017, Page(s) 184504, ISSN 0021-9606
Publisher:
American Institute of Physics
DOI:
10.1063/1.4982934
Author(s):
Luuk Metselaar, Ivan Dozov, Krassimira Antonova, Emmanuel Belamie, Patrick Davidson, Julia M. Yeomans, Amin Doostmohammadi
Published in:
Physical Review E, Issue 96/2, 2017, Page(s) 022706, ISSN 2470-0045
Publisher:
American Physical Society
DOI:
10.1103/PhysRevE.96.022706
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