216 results about "Polymer metal" patented technology

Disclosed herein, inter alia, are polymerized metal organic framework compositions and polymer compositions, and methods of making and using the same.

Techniques are disclosed for detecting a functionality of a medical device implanted within the human body. A testing method includes delivering power to and measuring an electrical response of ion exchange polymer metal composite (IPMC) material that is part of the implant device in a first testing interval. Power can be transmitted at radio frequencies which penetrate tissue such that direct contact with the implant device is not required. Following the first testing interval, the implant can be powered continuously for a predetermined time. The implant can be powered in a second testing interval and the electrical response can again be measured. A functionality of the implant device can be detected based on the electrical response in the first and second testing intervals. The testing method can be practiced in connection with a handheld device, a retainer, or other suitable apparatus.

The present invention provides prodrugs comprising a polymer conjugated to a metal chelator via a disulfide bond. For example, D-penicillamine may be conjugated to a polymer (e.g., gelatin, chitosan, polyglutamic acid) via a linker, such as SPDP. Thus, the cellular delivery and pharmacokinetics of D-penicillamine can be substantially improved. Methods for the treatment of cancer using compositions of the present invention are also disclosed.

The invention relates to a selective hydrogenation method for C2 fraction, which employs a front-end hydrogenation process method of front-end depropanization. The selective hydrogenation method is characterized in that a Pd-Ag catalyst is loaded in a heat-insulation bed reactor, wherein the Pd-Ag catalyst contains Al2O3 used as a carrier, and the contents of Pd and Ag are 0.010-0.4% and 0.02-0.2% respectively if assumed that the weight percentage of the catalyst is 100%, and the Pd-Ag catalyst has a specific surface area of 1-20 m<2>/g and a pore volume of 0.1-0.35 mL/g; during the preparation process of the catalyst, an organic polymer metal complex is formed; and the reaction conditions are as follows: the inlet temperature of the used heat-insulation bed reactor is 45-100 DEG C, the reaction pressure is 3.5-4.5 MPa, and the volume airspeed of gas is 3500-25000 h<-1>. Using the method provided by the invention, the improvement of selectivity facilitates the operation of hydrogenation reaction and excessive hydrogenation is not easy to occur; moreover, at high reaction temperature, the catalyst has good activity, and alkyne leakage is not easy to occur.

The invention relates to a selective hydrogenation method for a C3 fraction. The method is characterized in that: an adiabatic bed reactor is provided with a Pd-Ag catalyst, the Pd-Ag catalyst contains Al2O3 used as a carrier, 0.2-0.4% of Pd and preferable 0.05-0.2% of Ag based on 100wt% of the catalyst, the specific surface area of the catalyst is 15-100 m<2>/g, the pore volume of the catalyst is 0.3-0.6 mL/g, and the catalyst forms an organic polymer metal complex during preparation process; and the hydrogenation process conditions are as follows: the inlet temperature of the fixed bed reactor is 10-50 DEG C, the reaction pressure is 2.5-3.5 MPa, the liquid phase volume space velocity is 5-100 h<-1> and the mol ratio of hydrogen to propyne and propadiene is (1-5):1. The selective hydrogenation method provided by the invention improves the hydrogenation activity and selectivity, greatly broadens the reaction space velocity range, greatly improves the running safety and efficiency of an apparatus and greatly improves economical benefits of the apparatus.

The invention discloses a preparation process of a palladium electrode ion polymer and metal composite, which is used for preparing a palladium metal electrode IPMC (Ion Polymer Metal Composite) by using immersion reduction plating and chemical plating methods in which an ion exchange membrane is used as a matrix material and [Pd (NH3)4] C12 is used as a main salt. The preparation process comprises the following four main steps of: (1) pretreatment of the matrix membrane: carrying out roughening, surface cleaning, foreign ion removal and full swelling on the matrix membrane; (2) immersion reduction plating including two processes, i.e., ion exchange and ion reduction: subjecting a pretreated Nafion membrane to repeated palladium ion immersion and exchange, and reducing the pretreated Nafion membrane with NaBH4 by adopting ultrasonic waves to form palladium metals on the surface and the internal surface of the ion exchange membrane; (3) chemical plating: wherein the thickening electrodes on the outer surface of a core material to compact internal surface electrodes by using an improved chemical plating method; and (4) postprocessing of the composite. The preparation process has a higher popularization value due to relatively improved efficiency, relatively lower cost and excellent actuation response.

The invention discloses a method for preparing an ionomer-metallic composite material, which adopts a Nafion-117 type ion-exchange film as a matrix material, uses [Pd(NH3) 2]Cl2 as a main salt, and adopts the chemical plating method to prepare a Pb metal type IPMC material. The process flow is divided into four parts: (1) the surface contact areas for ions to penetrate and reduction reaction are increased through sanding and roughening the ion-exchange film; (2) a pretreated Nafion film is impregnated for Pb ion exchange, a strong reducing agent reduces Pb ions, and a Pb metal layer is formed on the surface of the ion-exchange film; (3) secondary reduction is carried out by the improved chemical Pb plating method to thicken electrodes on the surface of a sandwich layer material; and (4) the material is subjected to post-treatment. The method has low cost, and experiments show that the IPMC material prepared has good performance, so that the ionomer-metallic composite material has high promotion value.

An electrode comprises an electrically conductive substrate, a layer of energy accumulating redox polymer deposited onto the substrate, the redox polymer comprising a polymer metal complex with a substituted tetra-dentate Schiff's base selected from the group: poly-[Me(R, R′—Y)], wherein Me is a transition metal; Y is a bridge group binding the atoms of Nitrogen in the Schiff's base; R is an electron-donating substituent comprising a functional group (X)O—, —COO(X), where (X) is an alkali metal; R′ is Hydrogen or Halogen; and wherein

the polymer metal complex has the following structure:

The electrochemical capacitor comprises a case housing the above-described positive electrode and a negative electrode disposed inside the case, and an electrolyte filling the space between the electrodes.

The invention discloses a heterogeneous catalyst adopting a hierarchical pore structure and adopting phosphine-containing organic mixed polymer-metal as well as preparation and an application of the heterogeneous catalyst in production of aldehyde with a high normal/isomeric ratio through internal olefin hydroformylation. In the heterogeneous catalyst, one, two or three of metal Rh, Co and Ir are taken as active components, and a phosphine-containing organic mixed polymer adopting the hierarchical pore structure is taken as a carrier and is prepared from multidentate organic phosphine ligands containing alkylene and monodentate organic phosphine ligands through copolymerization. The coordinate bond type heterogeneous catalyst is applicable to a fixed bed reactor, a slurry bed reactor, a bubble column reactor, a trickle-bed reactor and other reactors. The provided heterogeneous catalyst has good presentation in the internal olefin hydroformylation reaction, internal olefins are firstly isomerized to be terminal-group olefins under the action of the catalyst, a hydroformylation reaction is performed, corresponding normal aldehyde is selectively generated, accordingly, the normal/isomeric ratio of the product aldehyde is high and can be higher than 15, and the content of alkane in the obtained product is lower than 1%.

The invention relates to a flexible composite beam electric heating microdriver based on a U+V shape, which belongs to the technical field of microelectromechanical systems. The flexible composite beam electric heating microdriver based on a U+V shape comprises a U-shaped beam base, a U-shaped beam pole, a V-shaped beam base, a V-shaped beam pole, a U-shaped double-hot arm composite beam electric heating driver and a V-shaped composite beam electric heating driver, wherein the U-shaped double-hot arm composite beam electric heating driver comprises a U-shaped double-hot arm metal resistance wire, a U-shaped metal cold arm, a U-shaped double-hot arm polymer drive layer and a U-shaped cold arm polymer layer; and the V-shaped composite beam electric heating driver comprises a V-shaped metal resistance wire, a metal contact point and a V-shaped polymer drive layer. The U-shaped double-hot arm metal resistance wire, the U-shaped metal cold arm and the V-shaped metal resistance wire are completely coated by the U-shaped double-hot arm polymer drive layer, the U-shaped cold arm polymer layer and the V-shaped polymer drive layer to form a polymer-metal-polymer sandwich structure. The electric heating microdriver has larger drive displacement, higher drive rigidity, low power consumption and high energy utilization ratio.

The invention belongs to the technical field of polymer-metal functional composite material preparation, and relates to a preparation method of polymer-rare earth ion luminous micelles. An amphipathy two-block AB type copolymer or a three-block ABA type copolymer is selected to serve as a first ligand, and molecular weight of each block and total molecular weight of a segmented copolymer are respectively determined through a testing method of nuclear magnetic resonance spectra and a gel permeation chromatography; oxide of rare earth element is contained in a beaker, excessive hydrochloric acid is added for stirring until the oxide is completely dissolved; then the beaker is placed in a water bath until liquid in the beaker is dried to obtain trivalent rare earth chloride crystals; and a polymer solution and a rare earth ion solution are mixed in proportion, organic conjugation micromolecules are added to serve as a second ligand, the polymer solution, the rare earth ion solution and the organic conjugation micromolecules are evenly mixed to be placed in a reaction vessel, and condensation backflow is carried out at a constant temperature to enable the copolymer and rare earth ions to conduct a complexing reaction to obtain the polymer-rare earth ion luminous micelles. The preparation method is simple in process, reliable in principle, strong in operability and stable in product structure.

The invention relates to a metal-doped nitrogen-containing carbon-based catalyst of a fuel cell and application of the catalyst. The catalyst adopts organic surface active agents as a protection agent and a structural guide agent and adopts an aromatic compound and aldehyde as reaction monomers, metal elements are added in the reaction process to obtain a polymer-metal compound, and the polymer-metal compound is dried and then is subjected to high-temperature processing with inert gas or/and ammonia gas to finally obtain the metal-doped nitrogen-containing carbon-based catalyst. When the metal-doped nitrogen-containing carbon-based catalyst is used as a cathode catalyst of a proton exchange membrane fuel cell and a direct-methanol fuel cell, the oxide reduction activity, stability and toxicity resistance are excellent; moreover, the catalyst has an environment-friendly effect, is low in cost, controllable in aperture, high in specific surface area and rich in resource and can substitute for platinum to serve as an electric catalyst of the proton exchange membrane fuel cell.

A halogenated aromatic monomer-metal complex useful for preparing a polymer for electronic devices such as a light-emitting diode (LED) device is described. The aromatic monomer-metal complex is designed to include a linking group that disrupts conjugation, thereby advantageously reducing or preventing electron delocalization between the aromatic monomer fragment and the metal complex fragment. Disruption of conjugation is often desirable to preserve the phosphorescent emission properties of the metal complex in a polymer formed from the aromatic monomer-metal complex. The resultant conjugated electroluminescent polymer has precisely controlled metal complexation and electronic properties that are substantially or completely independent of those of the polymer backbone.

The invention discloses a silver electroplating coating composition. The composition comprises the following components in parts by weight: 7-30 parts of a high-molecular metal aligning agent, 0.1-10 parts of hyperbranched hydroxyl resin, 1-6 parts of aluminium silver paste, 60-300 parts of a solvent, and 1.011-14 parts of an auxiliary agent. The invention also discloses a preparation method of the silver electroplating coating combination. The method comprises the following steps: 15-90 parts of the solvent is added into 0.1-10 parts of hyperbranched hydroxyl resin in a first container; 20-60 parts of the solvent is added into 1-6 parts of the aluminium silver paste in a second container, 1.011-14 parts of the auxiliary agent is added with uniform stirring, and uniform stirring is carried out continuously; a mixture in the second container is added into the first container with uniform stirring; finally, 7-30 parts of the high-molecular metal aligning agent and 25-150 parts of the solvent are added with uniform stirring, and the silver electroplating coating composition is obtained. The silver electroplating coating composition has the characteristics of high performance as well as good appearance and brightness.

The invention relates to a back surface detection type SERS (surface-enhanced Raman scattering) chip and a preparation method thereof, and belongs to the technical field of SERS. The SERS chip is a polymer-metal composite material. The preparation method of the SERS chip comprises the following steps: copying an AAO (Anode Alumina Oxide) template structure by using a polymer, so as to obtain a polymer coronary array with the surface structure complementary to the AAO surface structure; further constructing a noble metal layer with SERS activity on the surface of the polymer coronary array, so as to obtain the SERS chip. Through the adoption of the manufacturing technology and the selected chip material, the two sides of the chip are different in medium material and surface roughness; experiments and theoretic simulation prove that surface plasma can be more effectively excited and coupling can be realized on the premise that the back surface detection manner is adopted for the chip, so as to obtain stronger SERS signals.

The invention relates to a preparation method of a fluorine-containing polymer porous nano-micron fibre electrode diaphragm. The preparation method comprises the following steps: dissolving a fluorine-containing polymer and soluble metal salt in an organic solvent to prepare a spinning precursor, then, preparing a fluorine-containing polymer-metal salt electrostatic spinning fibrous membrane through high-pressure electrostatic spinning, adding a mineralizing agent to carry out hydrothermal reaction so as to obtain a fluorine-containing polymer-metal oxide nano-micron fibrous membrane, carrying out acid treatment by using dilute acid aqueous solution to convert metal oxide nanoparticles in the fluorine-containing polymer-metal oxide nano-micron fibrous membrane into soluble metal salt which is dissolved in inorganic acid aqueous solution, thus obtaining the fluorine-containing polymer porous nano-micron fibre electrode diaphragm. The preparation method disclosed by the invention has the advantages that the liquid holdup, the infiltrating property and the conductive ion migration rate of the diaphragm can be effectively increased; the resistance among the diaphragm, an electrode and electrolyte is reduced; the electrochemical performances of a supercapacitor, such as the power density and the cycle service life, can be increased; and therefore, the supercapacitor having high power density can be obtained.

The invention discloses a phosphine-containing organic mixed polymer-metal heterogeneous catalyst and its use in butyraldehyde production. The heterogeneous catalyst comprises one, two or three of Rh, Co and Ir as active ingredients and utilizes a multistage pore-structure phosphine-containing organic mixed polymer as a carrier. The phosphine-containing organic mixed polymer is prepared from an alkylene-containing polydentate organic phosphine ligand and a single dentate organic phosphine ligand through copolymerization. The coordination bond-type heterogeneous catalyst is suitable for a fixed bed reactor, a slurry bed reactor, a bubbling bed reactor and a trickle-bed reactor. The heterogeneous catalyst has good effects in hydrogen-propene formylation preparation of butyraldehyde, can produce high-normal/isomeric ratio butyraldehyde with a normal/isomeric ratio of 25 or more and realizes product propane content less than 0.1%. The heterogeneous catalyst has good stability and can be simply and efficiently separated from reactants and products.

The present invention discloses a polymer-metal ion complex gel electrolyte and preparation method and application thereof. The polymer-metal ion complex provided by the present invention is prepared by the complexation of polymers and polyvalent metal salts. The polymer gel electrolyte prepared by the polymer-metal ion complex comprises polymers, polar small molecular plasticizers, polyvalent metal salts, monovalent metal salts, and iodine. The present invention also discloses a preparation method of the metal ion complex gel electrolyte. The polymer-metal ion complex gel electrolyte provided by the present invention overcomes the defects of poor maneuverability of electrolyte preparations and poor contact between interfaces in the prior art. The gel electrolyte is especially applicable to prepare dye-sensitized solar cells, which allows the photoelectric conversion efficiency of dye-sensitized solar cells to be above 5%.

The present invention is: a guest-compound-enveloping polymer-metal-complex crystal characterized by at least one selected from an aliphatic hydrocarbon, an alicyclic hydrocarbon, an ether, an ester, an aromatic hydrocarbon, a halogenated hydrocarbon, and a nitrile being enveloped as a guest compound (A) in the minute pores or the like of a polymer-metal complex that contains a metal ion as a central metal and a ligand having at least two ligating sites, has a 3D network structure formed by the ligand being ligated to the metal ion, and has the minute pores or the like regularly arranged three-dimensionally within the 3D network structure, the amount of the guest compound (A) present within the minute pores or the like being at least 60 mol % of all the guest compounds enveloped in the minute pores or the like; a method for producing the guest-compound-enveloping polymer-metal-complex crystal; a method for preparing a crystal structure analysis sample using the crystal; and a method for determining the molecular structure of an organic compound using the sample obtained by said method.

The invention provides an elastic base/back surface line leading-based micro-electromechanical system probe card and a preparation method thereof. The preparation method comprises the following steps that: a substrate through hole is slotted on a substrate; a substrate metal structure is by electroformed the substrate through hole, and a first metal seed layer is sputtered on the back surface of the substrate; an elastic polymer layer is in coated on the substrate, and an elastic polymer through hole structure is prepared on the elastic polymer layer; an elastic polymer metal structure is electroformed in the elastic polymer through hole structure; a second metal seed layer is sputtered on the elastic polymer layer, and a metal circuit layer is prepared on the second metal seed layer; a metal probe structure is prepared on the metal circuit layer; the first and second metal seed layers are removed, and the substrate is arranged on a printed circuit board in a surface mounting manner, such that the elastic base/back surface lead line-based micro-electromechanical systems probe card can be obtained. According to the elastic base/back surface line leading-based micro-electromechanical system probe card and the preparation method thereof provided by the invention, a back surface line leading method is adopted so as to directly connect the prepared probe card with a testing machine stage change-over card; and the elastic base/back surface line leading-based micro-electromechanical system probe card and the preparation method thereof are advantageous in omission of spot welding procedures, simplification of process and improvement of rate of finished products.

The present invention discloses a polymer-metal compound composite ink, a preparation method and application thereof. The composite ink comprises: at least one polymer; at least one metal compound material, the metal compound material being selected from polyoxometalate compounds and nanocrystalline metal oxides; at least one solvent which is used for forming a disperse system in the form of a uniform fluid together with the remaining components in the composite ink. The present invention also discloses a method for preparing the composite ink. The composite ink of the present invention is easily available in raw material, easy to prepare and low in cost, and can be manufactured into a composite thin film by spin-coating, printing or in other ways. The composite thin film, as an electrode modification layer, can be applied to photoelectric devices such as solar cells or light-emitting diodes, so as to improve the contact performance between an electrode and an organic active layer and thus enhance the performance and yield of photoelectric devices.