Paris, France
Paris, France

ESPCI ParisTech is a chemistry and physics engineering college run by the city of Paris, France and a member of ParisTech . It conducts high level research in those fields.The students enter the School after a competitive examination following at least two years of Classes Préparatoires. They are called Pécéen or PC1 and Pécéenne or PCN. The School itself is also known as Physique-Chimie or simply PC.The ESPCI ParisTech is one of the founding members of ParisTech and a member of the IDEA League and the UNITECH International Society.ESPCI develops its relations with industrial partners such as Schlumberger, Rhodia, Total, Thales, Arkema, Michelin, which sponsored each yeargroup of students and signed research contracts with ESPCI laboratories. ESPCI ParisTech has signed partnership agreements with L'Oréal and Saint-Gobain for the recruitment of their professionals. Wikipedia.

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Patent
Arkema, French National Center for Scientific Research and ESPCI ParisTech | Date: 2015-04-23

The present invention relates to a composition containing, besides a thermosetting resin of epoxy type and a hardener of anhydride type, at least one catalyst comprising an organometallic titanium complex. This composition enables the manufacture of vitrimer resins, that is to say resins that can be deformed in the thermoset state. It also relates to a kit for manufacturing this composition, an object obtained from this composition and a kit for manufacturing this object. Another subject of the invention relates to an organometallic titanium complex corresponding to the structure titanium bis(3-phenoxy-1,2-propane dioxide) (Ti(PPD)_(2)), and the use thereof as vitrimer effect catalyst in systems based on epoxy resin and on hardener of anhydride type.


The object of the invention is a composition comprising (a) cross-linked polymers containing pending links and cross-links that are exchangeable by aldehyde-imine exchange reactions and/or by imine-imine exchange reactions, obtained by cross-linking of linear or branched polymers; and (b) free monofunctional aldehydes and/or free monofunctional Another object of the invention is preparation processes of such a composition and the uses of the composition. Another object of the invention is compositions for cross-linking linear or branched polymers and their use to form a composition comprising cross-linked polymers containing pending links and cross-links that are exchangeable by aldehyde-imine exchange reactions and/or by imine-imine exchange reactions. Finally, an object of the invention is the use of aldehyde to catalyse imine-imine metathesis reactions and imine-aldehyde exchange reactions.


The present invention lies within the field of colloidal assemblies and relates to a system for producing solid clusters of microparticles, characterized in that it comprises at least:


The present invention relates to the use of a solution of liquid particles in suspension for the control, calibration and/or performance of physical, in particular optical, measurements in a flow cytometry device for analysis of biological cells, said solution comprising liquid particles (21) of a first liquid phase dispersed in a second liquid phase, said liquid particles (21) having physical, chemical and/or biochemical properties that enable the attainment of physical measurements in said flow cytometry device similar to measurements obtained with biological cells, and said liquid particles (21), having a diameter for which the coefficient of variation within the solution of liquid particles in suspension is less than 10%. The invention also relates to a measurement method and a flow cytometry device implementing the solution of liquid particles in suspension.


Patent
French Institute of Health, Medical Research, French National Center for Scientific Research and ESPCI ParisTech | Date: 2015-07-17

The present invention concerns a method for obtaining a functional parameter of a muscle having a part, the method comprising the steps of: a) applying ultrasound waves to the muscle, b) collecting the ultrasound waves retrodiffused by the muscle at a plurality of times, to obtain collected ultrasound waves, c) determining a first plurality of values representative of stiffness values of one part at a first plurality of times by using the collected ultrasound waves, d) determining a second plurality of values representative of deformation values of said part at a second plurality of times by using the collected ultrasound waves, and e) deducing at least one functional parameter based on the first plurality of values and the second plurality of values. The invention also concerns a corresponding device.


Patent
ESPCI ParisTech | Date: 2016-08-22

The present invention relates to the preparation of a compound library comprising the following steps:


The object of the invention is a polymer compositions comprising cross-linked polymer comprising boronic ester functions enabling exchange reactions, as well as free monofunctional boronic esters. These compositions arise from the polymerisation of precursor monomers to thermoplastic polymers comprising at least one pending boronic ester group, said pending boronic ester group not containing any polymerisable group and cross-linking agent comprising at least one boronic ester group enabling the formation of a network of cross-linked polymer containing pending functions and cross-links that are exchangeable by boronic ester metathesis reactions. Another object of the invention are processes for preparing this composition and materials and formulations comprising this composition.


The object of the invention is a composition comprising a network of cross-linked polymers. Said network is prepared by radical copolymerisation of the following compounds: Another object of the invention is a material obtained from the composition according to the invention and a preparation process. Another object of the invention is a formulation comprising a composition according to the invention. Finally, an object of the invention is the use of aldehyde to catalyse imine-imine metathesis reactions and imine-aldehyde exchange reactions.


The object of the invention is a polymer compositions comprising cross-linked polymer comprising boronic ester functions enabling exchange reactions, as well as free monofunctional boronic esters. The compositions are obtained from the modification of a polymer by a functionalised boronic ester additive. This polymer can be pre-functionalised boronic ester or functionalised on addition of the said additive. In particular, the invention relates to a process enabling the behaviour of a polymer to be modified by addition of a functional additive, enabling a cross-linked network containing exchangeable boronic ester links to be formed.


Biscaras J.,ESPCI ParisTech
Nature communications | Year: 2010

Transition metal oxides show a great variety of quantum electronic behaviours where correlations often have an important role. The achievement of high-quality epitaxial interfaces involving such materials gives a unique opportunity to engineer artificial structures where new electronic orders take place. One of the most striking result in this area is the recent observation of a two-dimensional electron gas at the interface between a strongly correlated Mott insulator LaTiO(3) and a band insulator SrTiO(3). The mechanism responsible for such a behaviour is still under debate. In particular, the influence of the nature of the insulator has to be clarified. In this article, we show that despite the expected electronic correlations, LaTiO(3)/SrTiO(3) heterostructures undergo a superconducting transition at a critical temperature T(c)(onset)~300 mK. We have found that the superconducting electron gas is confined over a typical thickness of 12 nm and is located mostly on the SrTiO(3) substrate.

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