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4(%3)3 - Ecole nationale supérieure de chimie de Montpellier

4(%3)3 - Ecole nationale supérieure de chimie de Montpellier

4(%3)3 - Ecole nationale supérieure de chimie de Montpellier

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possible retention. Lastly, translocation should be carried with even smaller silica NPs (comparable topoly(styrene) ones ) at same concentration in or<strong>de</strong>r to better correlate the results. Similarly, largerpoly(styrene) NPs should be prepared in or<strong>de</strong>r to examine the role of surface nature vs. size vs. structuralcharacteristics of the NPs. Even stiffer NPs than silica, like that of Titanium dioxi<strong>de</strong> or Gold can beexplored to completely un<strong>de</strong>rstand the role of various parameters. Finally, these experiments can alsobe carried out with the membrane having crosslinked core in or<strong>de</strong>r to conclusively prove the role ofstructural dynamism of the membrane.In the third part, we couldn’t <strong>de</strong>velop a true membrane from the copolymer hence this can beconsi<strong>de</strong>red as the first objective to how achieve a porous superstructure from thousands of such zippedmicelles’ layers. Being very thin, it was difficult to explore the mechanical response of the assembly.Currently, experiments are un<strong>de</strong>rway where the thin PMMA films coated with such multilayer assemblywill be tested on a DMA instrument. Surface in<strong>de</strong>ntation measurements can also be utilized to get anestimation of hardness of the coating and eventually the membrane. Preliminary experiments areun<strong>de</strong>rway to verify the thermally simulated self-healing of the coating at different temperatures. Oncethe healing is established, there can be whole series of experiments involving DMA, rheological tests ofhealed and un-healed specimens at different temperatures and other conditions.For the final part, as it has been indicated to be largely incomplete except the synthesis of theprecursor RAFT agent, hence there are lot of experiments need to be done. The foremost ones being tovalidate the i<strong>de</strong>a of crack retardation and its closure by a soft matter like gel at microns level followed byperpetual <strong>de</strong>crease in size till nano level.141

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