674 results about "Unsaturated bonds" patented technology

To provide a method for producing a modified resin that allows efficient production of a desired modified resin by enabling smooth progress of a modification reaction of a resin having an epoxy group by using a tertiary phosphine as a catalyst.SOLUTION: A method for producing a modified resin comprises a step (A-1) of reacting a nucleophile having no polymerizable unsaturated bond with a resin containing an epoxy group, under the presence of a catalyst containing a tertiary phosphine and under an atmosphere in which the oxygen concentration of a gas phase part within a reaction vessel is less than 2 vol.%.SELECTED DRAWING: None

Provided is an arylalkyl-modified indene composition comprising a plurality of compounds, each of the compounds having one or more arylalkyl groups on an indene ring and differing from the others in the number of arylalkyl groups in one molecule. The content of the compound or compounds having a single arylalkyl group in one molecule is 1% or less in the composition at the percentage calculated on the basis of the area ratio in a GPC chart. At least one of the arylalkyl groups present in the composition is an arylalkyl group having a polymerizable unsaturated bond-containing group, while at least one of the arylalkyl groups present in the composition is an arylalkyl group having no polymerizable unsaturated bond-containing group.

Provided is an arylalkyl-modified indene composition that contains a plurality of types of compounds having an arylalkyl group on an indene ring, the compounds having different numbers of arylalkyl groups in one molecule, wherein: the content of a compound in which the number of arylalkyl groups in one molecule is 1 is 1% or less as calculated from the area ratio of the GPC chart; at least one of the arylalkyl groups present in the composition has a polymerizable unsaturated bond-containing group; and at least one of the arylalkyl groups present in the composition does not have a polymerizable unsaturated bond-containing group.

This method for producing an aryl-alkylated indene composition involves: adding an arylalkyl group having a polymerizable unsaturated bond-containing group to an indene compound; and adding an arylalkyl group having no polymerizable unsaturated bond-containing group to the indene compound to which the arylalkyl group having a polymerizable unsaturated bond-containing group is added.

The invention discloses a metal organic framework material, a preparation method thereof and a perovskite battery, and belongs to the technical field of perovskite batteries. The preparation method comprises the following steps: dissolving 1, 2, 4, 5-benzene tetracarboxylic acid in an organic solvent, adding ZrCl4 and a regulator acetic acid, carrying out a heating reaction to obtain a reactant, and carrying out centrifugation, washing and vacuumizing on the reactant to obtain the metal organic framework material. The metal organic framework material has high-density free carboxyl and a nano structure, the high-density free carboxyl can achieve the purpose of adsorbing lithium ions, and the nano structure can obtain better dispersity. When the metal organic framework material is applied to a hole transport layer of a perovskite battery, lithium ions can be well adsorbed, free carboxyl groups can also form chemical bonds with Pb ions of a perovskite active layer, surface defects and unsaturated bonds of the perovskite active layer are reduced, compounding of electrons and holes is prevented, and the performance of the perovskite battery is improved. Therefore, the electrochemical performance and the stability of the perovskite battery are improved.

The invention discloses a far-infrared high-transmittance composite material, a preparation method thereof and an optical device, and the far-infrared high-transmittance composite material comprises the following components in parts by weight: 70-99 parts of a polymer matrix; 1-30 parts of an anti-reflection auxiliary agent; the polymer matrix is a sulfur-containing polymer prepared by polymerization reaction of a polymeric monomer and sulfur, and the proportion of carbon-carbon unsaturated bonds is less than 3%; the polymeric monomer is selected from at least one of a vinyl monomer, a propenyl monomer, an acrylic acid monomer, a methacrylic acid monomer, an epoxide monomer, a thiopropyl ring monomer, an alkynyl monomer, a butadiene monomer, an isoprene monomer and a norbornene monomer; the anti-reflection auxiliary agent comprises at least one of nano zinc sulfide, nano zinc selenide, nano calcium fluoride, nano magnesium fluoride and nano magnesium oxide. The composite material and the optical device thereof have high far infrared transmittance and good mechanical properties and processability, and can meet the requirements of various far infrared optical fields.

The invention discloses an antifouling wear-resistant auxiliary agent and a preparation method and application thereof, and belongs to the technical field of fluorine-containing functional preparations, the antifouling wear-resistant auxiliary agent is prepared from the following raw materials by mole: 1-2 parts of single-ended active perfluoropolyether alcohol PFPE-OH; 1 to 2 parts of isophorone diisocyanate; 1 part of nano silicon dioxide containing hydroxyl groups on the surface; 2 to 5 parts of monoisocyanate containing unsaturated bonds; 2 to 25 parts of acrylic acid hydroxyl ester; 40 to 400 parts of a comonomer; 2-20 parts of a reaction active monomer; the reactive monomer contains an unsaturated bond and is used for side chain grafting. The antifouling wear-resistant auxiliary agent comprises a nano silicon dioxide hybrid multi-branched polymer containing a perfluoropolyether group, contains a plurality of unsaturated sites, is suitable for a UV curing coating system, and can significantly improve the antifouling and anti-fingerprint characteristics and wear resistance of the surface of a coating.

The invention relates to an electrolyte, a secondary battery and an electric device. The electrolyte comprises a first additive, a second additive and a third additive, the first additive comprises inorganic salt containing elements; the second additive comprises a compound containing an unsaturated bond, and the reduction potential of the compound containing the unsaturated bond is larger than or equal to 0.8 V (Li < + > / Li); the third additive comprises a compound containing an amide group; by adding the first additive, the second additive and the third additive into the electrolyte, the high-temperature performance and the low-temperature performance of the secondary battery can be improved at the same time.

The present disclosure provides a thermosetting resin composition contributing to reducing the elastic modulus of a cured product and increasing the flexibility thereof while reducing the chances of causing a decline in the heat resistance of the cured product. A thermosetting resin composition contains: a maleimide compound (A) having at least two maleimide groups in one molecule; a compound (B) having, at either or both of terminals thereof, a substituent with an ethylenic unsaturated bond and having a polyphenylene ether skeleton; and an inorganic filler (C). The compound (B) includes a compound (B1) having a butadiene-derived structural unit.

The invention relates to a high-temperature-resistant low-dielectric high-strength benzoxazine intermediate and a preparation method of benzoxazine, and belongs to the field of functional polymer materials. The method comprises the following steps: adding paraformaldehyde, unsaturated bond-containing dihydric phenol, a monohydric phenol compound and a diamine compound into a reactor, adding a solvent, reacting at 85-110 DEG C for 8-12 hours, after the reaction is finished, obtaining a benzoxazine intermediate through a purification process, and fully drying the benzoxazine intermediate for later use; and reacting the benzoxazine intermediate at 120-230 DEG C for 8-20 hours to obtain the polybenzoxazine resin.

The invention belongs to the technical field of semiconductor material processing, and relates to a bonding method and a wafer room temperature bonding method, which are executed by a bonding system comprising a film forming chamber, a bonding chamber, a transmission chamber and a bonding point location preparation unit. The method comprises the following steps: forming an active film layer containing unsaturated bond active points on the surface of a wafer; active components are introduced through the bonding point site preparation unit, so that the active components react with the active point sites to form bonding point sites; transmitting the two wafers to a bonding chamber and aligning the two wafers; pressure is applied, and bonding is completed by means of the pressure and the bonding reaction between the bonding points. According to the method, the flat and active bonding surface can be prepared, the lattice structure is not influenced in the bonding process, and the quality of the bonding wafer product can be improved.

The invention relates to the technical field of high polymer materials, in particular to an anion exchange membrane and a preparation method and application thereof, and the anion exchange membrane is formed by an ion exchange polymer formed by copolymerization of a thienyl main chain monomer and a trifluoroalkyl compound branched chain monomer, the ratio of thienyl to phenyl in the main chain monomer is fixed; through precise doping copolymerization of thiophene groups, sulfur-sulfur interaction is introduced into a main chain skeleton, gas and water diffusion performance of the material is further changed, main chain flexibility can be improved, conductivity can be improved, the polymer is applied to an anion exchange membrane, comprehensive adjustment of mechanical performance and ionic conduction performance is achieved, and the polymer has a wide application prospect. The main chain of the obtained polymer does not contain ether bonds, the alkali-resistant stability of the anion exchange membrane can be improved due to the structural characteristic of unsaturated bonds, and the method is suitable for recycling industrial wastewater containing eosin B (EB) and reactive red X-3B dyes.

A resin composition and an article made therefrom are provided. The resin composition includes: (A) 100 parts by weight of an unsaturated bond-containing polyphenylene ether resin; (B) 20 parts by weight to 150 parts by weight of a copolymer, the copolymer having a structural unit formed by a monomer of Formula (1) and a structural unit formed by a monomer of Formula (2), and the content of the structural unit formed by the monomer of Formula (2) in the copolymer is 55 wt % to 90 wt %; and (C) 10 parts by weight to 40 parts by weight of an unsaturated bond-containing crosslinking agent. The resin composition may be used to make various articles, such as a prepreg, a resin film, a laminate or a printed circuit board, and at least one of the following properties can be improved, including glass transition temperature, Z-axis ratio of thermal expansion, multi-layer board heat resistance, interconnect stress test, dissipation factor aging rate, temperature coefficient of dielectric constant, temperature coefficient of dissipation factor and branch-like pattern at laminate edges.

The invention belongs to the technical field of rubber auxiliaries and rubber tracks, and particularly relates to a coupling agent composition for inhibiting rubber appearance flooding and application of the coupling agent composition in the rubber tracks. The coupling agent composition comprises the following components in percentage by weight: 15%-30% of coupling agent, 1%-15% of metal chloride and 70%-85% of clay mineral. Different from a microcapsule technology only aiming at anti-aging agent migration, the coupling agent composition disclosed by the invention can effectively capture various types of color-flooding source substances including carbon black residues, anti-aging agents, antioxidants and the like by starting from common characteristics (containing unsaturated bonds, heteroatoms and aromatic structures) of color-flooding small molecules and through the synergistic effect of the coupling agent and metal ions, so that the color-flooding source substances can be effectively captured. And the method has wide applicability. In addition, a composite system composed of the clay, the coupling agent and the metal chloride can improve the bonding strength of the rubber and a track framework material, and is suitable for being applied to a heavy-load rubber track.

The invention relates to a reaction type closed diamine chain extender, dual-curing photosensitive resin, a 3D printed part and a preparation method, the reaction type closed diamine chain extender is obtained through reaction of a diamine chain extender and a functional monomer, the functional monomer at least comprises a functional group A, a functional group B and a functional group C, the functional group A is an aldehyde group or a ketone group and is used for reacting with an amino group in the diamine chain extender; and a functional group B containing a photocurable unsaturated bond. The reactive closed diamine chain extender provided by the invention participates in a photocuring process, so that the strength of a material in a photocuring stage is improved, the product yield in a printing process is ensured, no by-product is generated during subsequent heat treatment, and the mechanical property of a final finished product is not influenced. The dual-curing photosensitive resin can be stably stored for a long time, the mechanical property of the material can be remarkably improved through the photocuring-heat treatment synergistic effect, and the dual-curing photosensitive resin can be used for photocuring 3D printing technologies such as sinking type SLA and pull-up type DLP and LCD at the same time.

To provide a photosensitive element capable of forming a resist pattern excellent in adhesion of the resist pattern to a substrate and plated copper wiring formability.SOLUTION: The photosensitive element includes a support film and a photosensitive resin layer containing a photosensitive resin composition. The photosensitive resin composition contains, based on the total solid mass in the photosensitive resin composition, the following components: (A) 30-70 mass% of an alkali-soluble polymer; (B) 20-60 mass% of compounds having ethylenically unsaturated bonds; and (C) 4.0-10.0 mass% of a biimidazole photopolymerization initiator. The content of a constituent unit derived from benzyl (meth)acrylate in the component (A) is 40 mass% or more based on the whole component (A). The content of a compound having two ethylenically unsaturated bonds in one molecule in the component (B) is 80 mass% or more based on the whole component (B).SELECTED DRAWING: Figure 2

The present invention relates to a process for producing a coating from an aqueous, radiation-curable coating composition, wherein the process comprises the steps in the sequence (1) to (4):(1) applying an aqueous, radiation-curable coating composition on a surface of a substrate,(2) drying the aqueous, radiation-curable coating composition, affording an at least partially dried coating composition,(3) irradiating the at least partially dried coating composition with UV light having a wavelength s 220 nm under inert atmosphere, followed by(4) irradiating with UV light having a wavelength 300 nm or with E-beam,wherein the aqueous, radiation-curable coating composition is a dispersion comprising:(A) at least one water-dispersible polyurethane (A), wherein the polyurethane (A) has a urea group (—NH—CO—NH—) concentration of at least 0.1 milli-equivalents per g of polyurethane (A) and of at most 2.6 milli-equivalents per g of polyurethane (A) and the polyurethane (A) is essentially free of radiation-curable, ethylenically unsaturated bonds,(B) at least one radiation-curable diluent (B) with a molar mass less than 750 g / mol and with an acrylate functionality of from 2 to 5, and(C) water and optionally organic solvent, whereby the optional organic solvent is present in an amount of at most 30 wt. %, based on the total amount of water and organic solvent,whereinthe amount of (A) is from 30 to 85 wt. % and the amount of (B) is from 15 to 70 wt. %,based on the total amount of (A) and (B).

The invention discloses an in-situ curable electrolyte, an in-situ curable electrolyte formed by the in-situ curable electrolyte and a battery. The in-situ curable electrolyte comprises an electrolyte and an electrolyte additive, wherein the electrolyte additive comprises a compound A and a compound B, and the compound A is selected from one or more of compounds with a structure as shown in a formula (1); the compound B is selected from one or more of amino-containing compounds; in the formula (1), R3 is a substituent group containing an unsaturated bond. The in-situ curing electrolyte formed by the electrolyte capable of being cured in situ contains a multiple cross-linked network structure formed by interaction of amido and thiolactone, so that the mechanical strength of the gel electrolyte is improved; meanwhile, the gel electrolyte contains disulfide bonds and hydrogen bonds, so that the gel electrolyte is endowed with certain self-repairing capability, and the cycle life of a battery can be prolonged. # imgabs0 #

To provide a photosensitive composition capable of forming pixels with fine line width, and excellent in lithography property, a method for producing an optical filter and a method for producing a solid state image sensor.SOLUTION: A photosensitive composition includes a coloring agent A, a photopolymerization initiator B, a polymerizable monomer C containing an ethylenically unsaturated group, and a polymerizable resin D containing an ethylenically unsaturated bond-containing group, where a content of coloring agent A in the total solid content of the photosensitive composition exceeds 50 mass%, the content of polymerizable monomer C in the total solid content of the photosensitive composition is 4 mass% or more, and the composition contains 5 to 200 pts.mass of polymerizable monomer C per 100 pts.mass of polymerizable resin D, suitable for exposure with light at a wavelength of 300 nm or less.SELECTED DRAWING: None

The invention provides a fluorine-containing cooling liquid, application thereof and a liquid cooling system, the fluorine-containing cooling liquid comprises a fluorine-containing compound, and the fluorine-containing compound comprises one or more of compounds as shown in a formula 1, a formula 2 and a formula 3; # imgabs 0 #, # imgabs 1 # and # imgabs 2 #; wherein R11, R22 and R33 are respectively and independently selected from methyl; r < 12 >, R < 21 >, R < 31 >, R < 32 > and R < 34 > are independently selected from perfluoroalkyl groups; r13, R23 and R35 are independently selected from-CnF2n-groups and do not contain unsaturated bonds, and n is larger than or equal to 1. The fluorine-containing cooling liquid provided by the invention has high heat dissipation efficiency, the compounds shown in the formula 1, the formula 2 and the formula 3 are not decomposed when heated at high temperature, the stability of the compounds is good, and the problem of corrosion to equipment needing heat dissipation cannot occur.

The application relates to the field of catalysis, and discloses an aluminum oxide, a preparation method and application thereof, and a solid state 27 The Al magic angle spinning nuclear magnetic resonance spectrum has characteristic peaks between 16-51 ppm, and the electron paramagnetic resonance spectrum of the aluminum oxide has characteristic peaks at g=2.002-2.004. The surface and the interior of the aluminum oxide material provided by the application have F color centers, the aluminum oxide material can activate hydrogen under mild conditions, does not need to exist in the presence of a transition metal species, and catalyzes hydrogenation of a compound containing a carbon-carbon unsaturated bond.

The present invention provides an electronic or electrical device or component thereof comprising a cross-linked polymeric coating on a surface of the electronic or electrical device or component thereof; wherein the cross-linked polymeric coating is obtainable by exposing the electronic or electrical device or component thereof to a plasma comprising a monomer compound and a crosslinking reagent for a period of time sufficient to allow formation of the cross-linked polymeric coating on a surface thereof,wherein the monomer compound has the following formula:where R1, R2 and R4 are each independently selected from hydrogen, optionally substituted branched or straight chain C1-C6 alkyl or halo alkyl or aryl optionally substituted by halo, and R3 is selected from:where each X is independently selected from hydrogen, a halogen, optionally substituted branched or straight chain C1-C6 alkyl, halo alkyl or aryl optionally substituted by halo; and n1 is an integer from 1 to 27; and wherein the crosslinking reagent comprises two or more unsaturated bonds attached by means of one or more linker moieties and has a boiling point at standard pressure of less than 500° C.

The present invention provides a photosensitive resin laminate excellent in developability of a photosensitive resin layer, adhesion of a resist pattern to be obtained, and resolution.　This photosensitive resin laminate comprises a support film and a photosensitive resin layer containing a photosensitive resin composition, wherein the photosensitive resin composition contains the following components. (A) an alkali-soluble polymer, (B) a compound having an ethylenically unsaturated bond, and (C) a photopolymerization initiator, wherein component (A) contains the following components.　(A-1) a copolymer containing a constituent unit derived from a hydroxyalkyl (meth)acrylate and having a weight average molecular weight of 25,000 or less, and the content of a constituent unit derived from a compound having an aromatic ring in the component (A) is 50 mass% or more on the basis of the total mass of all monomer components.

The application provides an improved hyaluronic acid injection preparation for inflammation targeting and stem cell capture, a preparation method and use thereof, and belongs to the field of medicine. The injection preparation is prepared from unsaturated bond modified hyaluronic acid, stem cell targeting DNA tetrahedron and thiol modified inflammation targeting aptamer as raw materials. The injection preparation can be targeted to accumulate at an osteoarthritis site, capture mesenchymal stem cells in situ, recruit mesenchymal stem cells to the osteoarthritis site, promote differentiation of stem cells into cartilage, promote cartilage repair, play a role in treating osteoarthritis, and has a good application prospect.

Aiming at the characteristics of an ITO (Indium Tin Oxide) film, the invention specifically develops an acrylate polymer, an ultraviolet curing type adhesive composition prepared from the acrylate polymer and a polaroid adopting the ultraviolet curing type adhesive composition. According to the acrylate polymer, alkyl (meth) acrylate is adopted as a main framework, a main chain and branched chains do not contain unsaturated bond functional groups, and the weight-average molecular weight is 100,000-300,000. The ultraviolet curing type adhesive composition is prepared from the following components in parts by weight: 20 to 40 parts of acrylate polymer, 15 to 35 parts of acylamino-containing monomer, 13 to 40 parts of alkyl (meth) acrylate, 5 to 8 parts of silane compound, 1 to 5 parts of antistatic agent and 0.4 to 1.0 part of photoinitiator. The adhesive composition is designed and various parameters are controlled, so that the adhesive layer and the film material are combined more firmly, the polaroid with good bonding durability with ITO is obtained by controlling the gel fraction and the UV curing energy, the appearance flatness is good, and warping defects are avoided.

The invention provides a non-aqueous electrolyte and a lithium ion battery. The non-aqueous electrolyte comprises an electrolyte salt, a non-aqueous organic solvent and an additive. The additive comprises a compound A as shown in a structural formula I or a structural formula II. Wherein X is C, O or N, R1 is selected from hydrogen and substituted or unsubstituted C1-C6 alkyl, and R2 and R3 are respectively and independently selected from hydrogen, halogen and substituted or unsubstituted C1-C6 alkyl. The compound A has a cyclic unsaturated bond sulfate structure, and in the primary formation process, C = C double bonds in the ring can be polymerized on a negative electrode interface to form a polymerization protection layer, so that the high temperature and cycle performance of the battery are improved. In addition, due to the existence of O = S = O and nitrogen components on the ring, an inorganic SEI interface rich in sulfur and nitrogen can be formed, and the interface has a better lithium ion transmission rate. Therefore, the compound A shown in the structural formula I or the structural formula II can form an inorganic interface and an organic interface in the battery, so that the high-temperature performance, the cycle performance and the low-temperature performance of the lithium ion battery are improved. # imgabs0 #

The present invention provides an electrolyte additive and a preparation method thereof, an electrolyte and a lithium ion battery. The S atoms in the structure of the electrolyte additive of the present invention have low electronegativity and low binding energy with lithium ions, which can reduce the desolvation energy of lithium ions and significantly improve the rate performance and cycle life of the battery at low temperatures. Moreover, the O atoms in its structure can significantly improve the solubility of the additive to compensate for the defect of poor solubility caused by the S atoms. In addition, the additive contains unsaturated bonds, which can form a dense SEI film containing S, which is beneficial to the migration of lithium ions at the electrode / electrolyte interface at low temperatures, and the SEI film containing S can effectively inhibit the generation of lithium dendrites at low temperatures, further improving the rate performance and cycle life of the battery at low temperatures.

The invention belongs to the technical field of all-solid-state batteries, and particularly relates to a liquid crystal elastomer-containing sulfide solid-state battery and a preparation method thereof. The sulfide solid-state battery comprises an electrode membrane and an electrolyte membrane, and the electrode membrane is prepared by mixing a liquid crystal elastomer serving as a binder with an electrode material through a dry method; and / or the electrolyte membrane is prepared by mixing a liquid crystal elastomer serving as a binder with a sulfide solid electrolyte through a dry method; the liquid crystal elastomers are the same or different and are prepared from liquid crystal functional monomers containing at least one unsaturated bond and polymeric monomers containing unsaturated double bonds through free radical polymerization; or the liquid crystal functional monomer containing at least one unsaturated bond and a polymeric monomer containing sulfydryl or amido are subjected to sulfur-alkene reaction or Michael addition reaction. In the preparation process of the sulfide solid-state battery, a solvent is not needed, and the sulfide solid-state battery has important significance of energy conservation, emission reduction and environmental protection.

A photosensitive resin composition containing a polyimide precursor having a polymerizable unsaturated bond, and a solvent, wherein the solvent contains N,N'-dimethylpropionamide.

The invention discloses a gel electrolyte which is prepared by a chemical cross-linking method and contains an unsaturated bond or reactive functional group (such as double bonds, hydroxyl and carboxyl) monomer and a material with ether type and hydroxyl type oxygen as an additive. Rich functional groups with negative charges on the monomer can be coordinated with Zn < 2 + > ions, so that the point effect is limited, more Zn salts are attracted to be accumulated, and the growth of Zn dendritic crystals in the repeated charging and discharging process is inhibited. The relatively strong interaction between the monomer and the material with ether type and hydroxyl type oxygen and H2O breaks the intermolecular hydrogen bond of H2O-H2O and reduces the reaction activity of water, so that the freezing point of the gel is reduced and the thermal stability is enhanced at the same time. Therefore, the gel electrolyte shows excellent electrochemical performance at a wide temperature range. The gel electrolyte provided by the invention inhibits dendritic crystal growth, hydrogen evolution and other interface side reactions, and is beneficial to uniform Zn < 2 + > deposition, thereby improving the stability of the zinc negative electrode.