摘要:
The present invention relates to electrochromic polymers, obtained by polymerization of monomers. The present invention further relates to monomers of general formula (I) or (II), wherein A and B are specific functional groups selected among the following: -C=0, -C=S, - 0(C=0), -0(C=S), -0(C=0)0, -(C=0)0, -(C=S)0, -(C=S)S, -(C=0)N, -(C=S)N, -SO, - S02, or, as an alternative, any linear or branched alkylic chain or a glycolic chain; wherein R and R' are linear or branched alkylic chains or glycolic chains, and wherein W is a monodisperse electrochromic derivative of general formula (III), wherein Het-1 and Het-2 are specific heterocyclic groups, and wherein π represents one of the following: a double bond, a triple bond or a plurality of double or triple bonds conjugated in a number n, n being equal to 2 or 3 or, for example, a benzenic ring or a thiophenic ring; X represents one of the following elements: O, S, Se; wherein R2, R3 and R4 are substituents; and wherein m is equal to 0, 4, 5 or 6. The present invention also relates to electrochromic panels and electrochromic ophthalmic lenses, comprising polymers in accordance with the present invention.
摘要:
Process of preparation of silicon-based multifunctional catalytic systems synthesised together with one or more surface active agents, 2) multifunctional silicon-based porous catalytic system comprising at least one porous catalytic support structurally comprising silica and at least one other metal or non-metal oxide chosen from aluminium, zirconium, and boron, said catalytic support being synthesised together with one or more surface active agents, and at least one or more catalyst chosen from among metallic elements of groups 6-10 of the periodic table of the elements, 3) the catalytic systems are useful in hydrogenation and/or decyclisation reactions of (poly)aromatic compounds, especially for improving the quality of diesel fuels and increasing their cetane number.
摘要:
The invention is related to a flexible transparent electrochromic device, which comprises the following components, each of which is a flexible film: a working electrode comprising a transparent conducting substrate supporting an working electrode active material; a counter electrode comprising a transparent conducting substrate supporting a counter electrode active material; a solid polymer electrolyte (SPE) comprising a solution of a lithium salt in a polymer solvent. Th method for preparing a said electrochromic device of the invention comprises the steps of: preparing a working electrode film, preparing a counter electrode film, preparing a polymer electrolyte film, and assembling the electrodes and the electrolyte, the method being implemented continuously.
摘要:
A method is described for the preparation of a ceramic nanocomposite at least bi-phasic comprising at least one oxide phase. The method comprises grinding the precursors of the phases constituting the nanocomposite until a particle size lower than 2 µm is obtained, a first heat treatment of the ground material at a temperature between 500°C and 1500°C for a time comprised between 5 minutes and 5 hours, a second grinding until mechanical-chemical activation of the powder is induced and a second sintering heat treatment at a temperature between 1000°C and 2000°C.
摘要:
The present invention relates to the use of a silicon-based porous catalytic system for oligomerising light olefins said porous silicon-based catalytic system having an average pore diameter of between about 1 nm and about 5 nm and an acidity level of between about 150 µmol/g and about 650 µmol/g, and prepared from at least one hydrolysable silicon-based compound, or other source of silicon, and at least one non-ionic surface active agent. The invention also relates to a process for oligomerising light olefins using said silicon-based porous catalytic system, and to certain silicon-based porous catalytic systems.
摘要:
The invention is related to a flexible transparent electrochromic device, which comprises the following components, each of which is a flexible film: a working electrode comprising a transparent conducting substrate supporting an working electrode active material; a counter electrode comprising a transparent conducting substrate supporting a counter electrode active material; a solid polymer electrolyte (SPE) comprising a solution of a lithium salt in a polymer solvent. Th method for preparing a said electrochromic device of the invention comprises the steps of: preparing a working electrode film, preparing a counter electrode film, preparing a polymer electrolyte film, and assembling the electrodes and the electrolyte, the method being implemented continuously.