Xavier Morelle

Associate Researcher @CNRS at @imp5223 @insadelyon | focused on #Polymer Networks #Mechanics | Formerly @UCLouvain_be @Harvard @ESPCI_Paris

[Xavier Morelle @xavier_morelle]

@zhigangsuo @RuobingB @EmlWebinar @ProfZhaoMIT @lihuajin2014 @YuhangHu @ZhengJia_ZJU @JieYinLab @KejieZhao Congrats @RuobingB !! ;-)

[Xavier Morelle @xavier_morelle]

Here is a nice paper that just got out of our lab @imp5223 where I had the pleasure to contribute while having fun again with the mechanical and rheological properties (here #thermoreversible!) of an #organohydrogel made of polysaccharides. #greenchemistry https://t.co/6YxthH0lVY

[Xavier Morelle @xavier_morelle]

NB: If interested please apply directly through the CNRS job webportal.

[Xavier Morelle @xavier_morelle]

Glad to announce we are looking to hire a PhD student (starting January 2023 @imp5223 ) on the design of tomorrow's silicone rubbers. This is part of #SilGenBeta #ANR project aiming at tuning silicons architecture towards a #bioinspired super #soft & super #stiffening response.

[Emploi CNRS @emploicnrs]

Doctorant: Design et propriétés physiques des silicones du futur (H/F) (VILLEURBANNE)
https://t.co/a4uRfZV90S
#Emploi #OffreEmploi #Recrutement

[Xavier Morelle @xavier_morelle]

Happy to share this recent review on the use of #nanomechanics to better understand polymer-based #composites behavior, highlighting some of the work (including my PhD) performed at @UCLouvain_be under the wise supervision of Thomas Pardoen!

https://t.co/RA9BnSabYY

[Xavier Morelle @xavier_morelle]

@zhigangsuo @goestlich @CretonCost @ShiQingWang4 @RuiHuangUTAus @CohenMechGroup @LPamiesOscar @Junsoo_twit @jasongsteck @aljcrosby To conclude, I foresee 2solutions to better estimate local stress: (1)using force-sensitive mechanophore (if in-situ visualization can be improved) (2)with reverse modelling using the difference of size between the max inflated state & the undeformed damage zone of a given cavity

[Xavier Morelle @xavier_morelle]

@zhigangsuo @goestlich @CretonCost @ShiQingWang4 @RuiHuangUTAus @CohenMechGroup @LPamiesOscar @Junsoo_twit @jasongsteck @aljcrosby Nonetheless, the level of initial saturation pressure gives an idea of the order of magnitude of the bulk stress than can be achieved through the decompression process (~5-30MPa with our setup) for the decompression rate we applied (i.e. another important test parameter)
(2/3)

[Xavier Morelle @xavier_morelle]

@zhigangsuo @goestlich @CretonCost @ShiQingWang4 @RuiHuangUTAus @CohenMechGroup @LPamiesOscar @Junsoo_twit @jasongsteck @aljcrosby Thanks @zhigangsuo!
As for the level of "applied stress", explosive decompression is a complex non-monotonic loading and does not allow for precise stress quantification, but rather for comparing the severity between different conditions.
(1/3)

[Soft Matter @softmatter]

3D fluorescent mapping of invisible molecular damage after cavitation in hydrogen exposed elastomers led by Xavier Morelle @xavier_morelle and Costantino Creton @CretonCost https://t.co/X1uFDxl0sO

[Xavier Morelle @xavier_morelle]

If you know someone interested to start a PhD next fall focusing on the molecular mobility of epoxy networks with increasing degree of heterogeneity @imp5223 @insadelyon => feel free to reach out!

[IMP5223 Ingénierie des Matériaux Polymères @imp5223]

Offre de thèse 'Mobilité moléculaire dans des réseaux époxy au degré d’hétérogénéité croissant' 1/10/21 @imp5223 @INC_CNRS @: [email protected] [email protected] https://t.co/IOgINj9voc @UniversiteLyon @insadelyon @UnivLyon1 @Univ_St_Etienne

[Xuanhe Zhao @ProfZhaoMIT]

Soft Materials by Design: Unconventional Polymer Networks Give Extreme Properties https://t.co/QoTDQ5OLcG

#hydrogels #softmaterials #polymers #tissues #biomaterials #bioelectronics #bioinspiration #networks #fracture #fatigue #adhesion #conductive #magnetized #selfhealing

[Xavier Morelle @xavier_morelle]

Great start of the month with another paper published for the @gfpolymeres 50th anniversary special issue in Polymer! Happy to have contributed to this work highlighting the #multifunctional capabilities of #epoxy network reinforced with #ionicliquid grafted POSS
#fireresistance

[IMP5223 Ingénierie des Matériaux Polymères @imp5223]

Last published paper @imp5223 @INC_CNRS 'Synthesis of New Ionic Liquid-Grafted Metal-Oxo Nanoclusters – Design of Nanostructured Hybrid Organic-Inorganic Polymer Networks' Polymer @ElsevierConnect https://t.co/6tXyjwghA0 @UniversiteLyon @insadelyon @UnivLyon1 @Univ_St_Etienne

[Xavier Morelle @xavier_morelle]

Really glad to finally see our recent paper using #mechanochemistry to unveil the molecular damage associated to #cavitation in elastomers (through explosive decompression) be published in @softmatter ! https://t.co/Fkqy8rpC9E
@CretonCost @SIMM_Lab

[Xavier Morelle @xavier_morelle]

@AntoineDeblais @UvA_Amsterdam @UvA_Science @IoP_UvA Congrats Antoine!! 👏🏻 Great to hear that ;-)

[Xavier Morelle @xavier_morelle]

A nice paper recently out of our lab and addressing some very interesting "chain mobility" questions concerning ionic-liquid cured epoxy networks!

[IMP5223 Ingénierie des Matériaux Polymères @imp5223]

Last paper published @imp5223 @INC_CNRS 'Dielectric behaviour of an epoxy network cured with a phosphonium-based ionic liquid' https://t.co/UgkC6DRGE9 @Polymer @ElsevierConnect @UniversiteLyon @insadelyon @Univ_St_Etienne

[Xavier Morelle @xavier_morelle]

@zhigangsuo Thanks Zhigang! And yes I still row... but definitely missing a little bit the Charles river, just like the good times with you and the rest of the lab team ;-)

[Xavier Morelle @xavier_morelle]

One of our last work with Xi Yao performed during my post-doc in Zhigang Suo's group at Harvard just got published in EML! It focuses on the development of novel anti-icing materials and blankets based on propylene-glycol gels => go have a look at it: https://t.co/bEmLQrRhNi

[Xavier Morelle @xavier_morelle]

and for those (registered) who missed my talk, it is still possible to re-watch it for a couple more days on the conference platform (afternoon Session of "Fracture - Extreme Conditions and Surface Preparation" on Tuesday February 23rd )

[Xavier Morelle @xavier_morelle]

Just 1week ago, I had the pleasure to present some of our latest work from @SIMM_Lab-ESPCI during this year @adhesion_the Society meeting. Thanks again to the organizers for this very nice event! It was great to mingle with fellow researchers and listen to very interesting talks!