Abstract: This invention relates to the direct grafting of a calixarene mostly onto the surface of a material, as well as to a grafting process, and certain calixarene intermediates useful for carrying the grafting process.

Abstract: The invention relates to a process for controlling the surface energy at the upper interface of a block copolymer (BCP1), the lower interface of which is in contact with a preneutralized surface of a substrate, in order to make it possible to obtain an orientation of the nanodomains of the block copolymer (BCP1) perpendicularly to the two lower and upper interfaces, the said process consisting in covering the upper surface of the block copolymer (BCP1) with an upper surface neutralization layer (TC) and being characterized in that the said upper surface neutralization layer (TC) comprises a second block copolymer (BCP2).

Abstract: ANT-ligands having a substituted nitrogeneous heterocycle A wherein A is a substituted pyrimidinone of formula I wherein R1 is —(CH2)n-CO—OH; —(CH2)n-CO—OR; —(CH2)n-CO—NHR; —(CH2)n-CO—N(R, R?); —(CH2)n-OH; —(CH2)n-OR; —(CH2)n-OAr; —(CH2)n-C(R,R?)—(CH2)n-OH, R and R?, in the above radicals, being identical or different and representing H or a C1-C12 alkyl or cycloalkyl radical; and Ar is a phenyl or Het., Het.

Abstract: The invention relates to molecules ANT-ligands having a substituted nitrogeneous heterocycle A wherein A is a substituted pyrazinone of formula I wherein R1 is —(CH2)n—CO—OH; —(CH2)n—CO—OR; —(CH2)n—CO—NHR; —(CH2)n—CO—N(R,R?); —(CH2)n—OH; —(CH2)n—OR; —(CH2)n—OAr; —(CH2)n—C(R,R?)—(CH2)n—OH, R and R?, in the above radicals, being identical or different and representing H or a C1-C12 alkyl or cycloalkyl radical; and Ar is a phenyl or Het., Het.

Abstract: The present invention discloses a method for preparing polycarbonate-urethane) or poly(ester-urethane) without isocyanate

Abstract: The present invention is a process to make a composition comprising a block copolymer A-B and optionally a monovinylaromatic polymer, said process comprising: a) forming a mixture comprising: one or more cyclic component polymerizable by ring-opening polymerization (ROP) dispersed in at least one monovinylaromatic monomer, optionally a rubber dissolved in the monovinylaromatic monomer, b) contacting the mixture of step a) with a mixture of b1 and b2 such that: b1) is M[N(SiR83)2]x in which M is a metal, R8 is an hydrocarbon group and x is the valency of the metal M, or a metal alkoxide M(OR9)x in which M is a metal, R9 is an hydrocarbon group and x is the valency of the metal M, or phenol-based pro-ligands of formula wherein R1 is wherein m is 1, 2 or 3 and n?1); R2 is hydrocarbyl group having 1 to 10 carbon atoms and is preferably selected from methyl, ethyl, iso-propyl, tert-butyl or neo-pentyl; R3 is the same as R1 or is hydrocarbyl group having 1 to 20 carbon atoms and is preferably a

Abstract: The invention makes it possible to measure, in real time, the flow of a fluid that is incompressible while having an unsteady flow. The pressure measuring system is primarily comprised of a negative-pressure element (1) placed within the flow and provided with two wall pressure taps (A, B). A means (2) for measuring a pressure difference connected to the pressure taps (A, B) enables the following formula to be solved: dq(t)/dt+?(q(t))=?×?p(t) directly stemming from fundamental equations of fluid mechanics and/or: ?p(t) represents the pressure difference measured by the sensor; q(t) represents the sought volume flow rate, and; ? represents a function of the geometry of the negative-pressure element, of the fluid and of the flow q(t), the particularity of this formula being the consideration of the direction of flow in the second term of the left member of the formula.

Abstract: Apparatus for the manipulating and testing of molecules and in particular of DNA comprising a surface on which the molecule is anchored on multiple points at one end and a paramagnetic bead on which said molecule is anchored on multiple points at its other end, magnetic means for applying a force to the bead, said magnetic means being used to control the stretching and rotation of said bead and molecule, optical magnification means and a camera for the visualisation of said bead, computer means to which the images of the camera are transmitted, said computer means comprising means for analyzing the motions of the bead. A method for the manipulating and testing of molecules and in particular of DNA in which a molecule is anchored at one end to a fixed surface and at its other end to a paramagnetic bead wherein said molecule is anchored on multiple points at each of said ends.

Abstract: An apparatus for manipulating and testing molecules comprising

Abstract: Apparatus for the manipulating and testing of molecules and in particular of DNA comprising