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DTSTART:20180325T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190913T093000
DTEND;TZID=Europe/Paris:20190913T123000
DTSTAMP:20190903T140207Z
CREATED:20190903T135730Z
LAST-MODIFIED:20190903T140207Z
UID:5494-1568367000-1568377800@www.is2m.uha.fr
SUMMARY:Soutenance  de thèse de Julie Kirschner
DESCRIPTION:Développement de nouveaux systèmes photoamorceurs pour des conditions d’irradiation douces : vers des applications dans le domaine dentaire
URL:https://www.is2m.uha.fr/event/soutenance-de-these-de-julie-kirschner/
LOCATION:Amphithéâtre de l’IS2M\, 15 rue jean starcky\, Mulhouse\, Mulhouse\, 68057\, France
CATEGORIES:soutenance de thèse
ATTACH;FMTTYPE=image/jpeg:https://www.is2m.uha.fr/wp-content/uploads/2018/10/these.jpg
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190917T100000
DTEND;TZID=Europe/Paris:20190917T100000
DTSTAMP:20190916T140616Z
CREATED:20190916T140616Z
LAST-MODIFIED:20190916T140616Z
UID:5528-1568714400-1568714400@www.is2m.uha.fr
SUMMARY:Soutenance de thèse de Thi-Kim-Hoang Trinh
DESCRIPTION:Photolatent N-heterocyclic carbenes (NHCs) for photomediated ring-opening metathesis polymerization (photoROMP)
URL:https://www.is2m.uha.fr/event/soutenance-de-these-de-thi-kim-hoang-trinh/
LOCATION:Amphithéâtre de l’IS2M\, 15 rue jean starcky\, Mulhouse\, Mulhouse\, 68057\, France
CATEGORIES:soutenance de thèse
ATTACH;FMTTYPE=image/jpeg:https://www.is2m.uha.fr/wp-content/uploads/2018/10/these.jpg
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190920T093000
DTEND;TZID=Europe/Paris:20190920T130000
DTSTAMP:20190905T071537Z
CREATED:20190905T071403Z
LAST-MODIFIED:20190905T071537Z
UID:5496-1568971800-1568984400@www.is2m.uha.fr
SUMMARY:Soutenance de thèse de Aude-Heloise Bonardi
DESCRIPTION:Development of new photoinitiating systems for mild irradiation conditions : From near UV to NIR systems
URL:https://www.is2m.uha.fr/event/soutenance-de-these-de-aude-heloise-bonardi/
LOCATION:Amphithéâtre de l’IS2M\, 15 rue jean starcky\, Mulhouse\, Mulhouse\, 68057\, France
CATEGORIES:soutenance de thèse
ATTACH;FMTTYPE=image/jpeg:https://www.is2m.uha.fr/wp-content/uploads/2018/10/these.jpg
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190924T143000
DTEND;TZID=Europe/Paris:20190924T160000
DTSTAMP:20190905T131118Z
CREATED:20190905T125816Z
LAST-MODIFIED:20190905T131118Z
UID:5504-1569335400-1569340800@www.is2m.uha.fr
SUMMARY:Séminaire Diane Rebiscoul  (CEA ICSM)
DESCRIPTION:The role of nanoconfinement on water properties and specific ion\neffects on the evolution of porous silica\nProcesses taken place at the solid/aqueous solution interface have a strong impact on\nthe evolution of materials in the fields of construction\, environment\, geochemistry\, membranes\,\ncatalysis\, and nuclear wastes. Since many materials in these application fields are completely\nor partially nanoporous (cementitious materials\, biominerals\, clay\, secondary minerals…) and\nfilled with aqueous solutions\, the processes and chemical reactions occurring in this\nnanoconfinement has a major impact on the materials evolution on a macroscopic scale. The\nstudy of such processes and chemical reactions occurring in nanometer-sized porosities in\ncontact with aqueous solutions (ions sorption\, electrolyte diffusion\, phase precipitation\, pore\nwall dissolution and the recondensation of dissolved species) is important since it differs from\nthe ones occurring in dense materials. Since water takes part in most of these processes and\nchemical reactions\, the understanding of water molecules behavior in such media is essential to\nbe able to predict the behavior of such materials.\nGenerally\, the macroscopic evolution of materials in solution is described or predicted\nusing modelling. Thermodynamic models and rate laws developed and integrated in computer\nprograms (PHREEQC\, JChess…) generally take into account some data arising from\nmeasurements performed in diluted media (concentration of dissolved ions\, pH\, kinetics and\nthermodynamic constants…). For nanoporous materials\, the validity of these models and rate\nlaws are still not proven yet\, thus prediction can be defective. Indeed\, under confinement and\nin presence of ions\, the water behavior is modified by the strong interactions between the pore\nsurfaces and the ions structuring water\, and slowing down its dynamics/transport from\nnanoscale to macro-scale. Such effects modify the electrostatic interactions in the system and\nthus the ions free energy landscape. Since chemical reactions such as silica\nhydrolysis/recondensation processes are controlled by the solution-silica interfacial layer\, the\nstudy of the modification of this interfacial layer in nanoconfinement is of paramount\nimportance to describe the evolution of nanoporous materials in aqueous solution. In-fine\, this\nwill allow the improvement of the thermodynamic models and rate laws of processes occurring\nin nanoconfinement.\nIn this study\, we investigated the water properties (structure and dynamics) in the\npresence of ions in silica nanoconfinement and relate it to the evolution of silica mesoporous\nmaterials in aqueous solutions. We used an original approach\, consisting in the use of\nelectrolyte solutions having ions with various kosmotropic property XCl2 (X = Ba\, Ca\, Mg)\nconfined in model systems such as two parallel and plane silica surfaces spaced of 3 and 5 nm\n(nanochannels) and highly ordered mesoporous silica materials represented by SBA-15 (6 nm\npore size and microporous pore wall) and MCM-41 (3 nm pore size and dense pore wall).
URL:https://www.is2m.uha.fr/event/seminaire-diane-rebiscoul/
LOCATION:Amphithéâtre 5 de l’ENSCMu
ATTACH;FMTTYPE=image/png:https://www.is2m.uha.fr/wp-content/uploads/2019/09/dianerebiscoul.png
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190926T143000
DTEND;TZID=Europe/Paris:20190926T160000
DTSTAMP:20190905T131234Z
CREATED:20190905T125030Z
LAST-MODIFIED:20190905T131234Z
UID:5499-1569508200-1569513600@www.is2m.uha.fr
SUMMARY:Séminaire didactique Corine Gérardin (Institut Charles Gerhardt Montpellier)
DESCRIPTION:Polyion complex micelles for directing structure\, functionalities and particle size of mesoporous silica nanomaterials \nOrdered mesoporous materials resulting from the synergy between supramolecular templating and sol-gel processes exhibit unique porosity and surface properties\, which make them highly attractive as drug delivery systems\, sensors\, adsorbents or catalysts \, and more generally for applications in fields as diverse as human health\, environment protection and sustainable energy. Functionalization of their mesopores by organic\, organometallic or biologically active functional groups can be achieved by well-controlled processes.  Bringing polymer functionalities in those systems could confer new physical and chemical properties to these hybrid materials\, but that remains a quite challenging task:  post-functionalization routes applied on template-free porous materials hardly succeed in providing homogeneously distributed polymer chains of controlled chemical function\, polymer block length and density of function. The use of polyion complex (PIC) micelles as structure-directing agents can allow overcoming the different issues related to the preparation of polymer-functionalized mesoporous materials.  Polyion complex micelles are dynamic assemblies obtained by electrostatic complexation between a double-hydrophilic block copolymer (DHBC) and an oppositely charged polyelectrolyte (PE)\, their formation is reversible in water as a function of parameters such as pH and ionic strength. Their use for structuring silica is highly beneficial since (1) they allow the preparation of ordered materials whose structure (2D hexagonal\, lamellar\, 3D spherical cubic) and pore size can be easily controlled\, (2) they allow recovering and recycling the pore-generating polymers (PE) and (3) they enable the direct preparation of homogeneously distributed polymer-functionalized mesoporous structures. Another great benefit of the use of PIC micelles is that the ability to finely tune the affinity for silica of the corona polymer blocks allows the preparation of mesoporous nanoparticles of controlled colloidal size. Finally this synthesis route could be extended to the preparation or periodic mesoporous organosilicas whose interest in biomedical applications was evidenced. \n 
URL:https://www.is2m.uha.fr/event/seminaire-didactique-corine-gerardin/
LOCATION:Amphithéâtre de l’IS2M\, 15 rue jean starcky\, Mulhouse\, Mulhouse\, 68057\, France
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