39 results about "Bond rupture" patented technology

The invention provides a self-repairing anticorrosive coating. The self-repairing anticorrosive coating comprises the following parts: 0.5 to 5 parts (by weight) of corrosion inhibitor loaded stimulation-responsive mesoporous silicon dioxide and 95 to 99.5 parts (by weight) of resin cured substance. The anticorrosive coating provided by the invention has dual stimulation responsiveness to acids and reducers and can achieve self-repairing. After the coating is destroyed, a local microenvironment changes, a corrosion inhibitor loaded stimulation-responsive mesoporous silicon dioxide shell high polymer, i.e., N-tert-butyl carbonyl in the coating is subjected to hydrolyzed removal (under the stimulation of the acids) or dithio bond rupture (under the stimulation of the reducers) under the stimulation of outside acids or reducers (for instance sulfur ions), the shell high polymer is subjected to hydrophobic-hydrophilic conversion, then, mesoporous silicon dioxide pore passages are exposed,the loaded corrosion inhibitor is quickly released to form a protective film, and corrosion can be effectively inhibited.

The invention discloses an ether bond rupturing method for ortho-hydroxyl phenyl alkyl ether. The method comprises the following steps that in a solvent, an ether bond rupturing reaction occurs to ortho-hydroxyl aryl alky ether at the temperature ranging from minus 20 DEG C to the catalyst reflux temperature under the existence of alkali and a catalyst aluminum triiodide, and catechol and derivatives thereof are generated. The method is simple, reaction conditions are simple, and operation is easy; besides, the yield is high, and the applicable ortho-hydroxyl phenyl alkyl ether range is wide.

The invention provides environment-friendly softening agent grafted regenerated rubber and a preparation method thereof. The preparation method comprises the following steps: taking vegetable oil containing phenolic hydroxyl groups and unsaturated alkyl chains as a regenerated rubber softening agent, adding an organic peroxide initiator in the waste rubber powder regeneration process, initiating double-bond or three-bond rupture to the regenerated rubber to produce free radicals, combining the free radicals with free radicals formed by a thermal oxidation effect in the rubber powder regeneration process, and grafting a free softening agent in the regenerated rubber onto a main chain of the regenerated rubber. The regenerated rubber prepared by the method disclosed by the invention has theadvantages of being green, environment-friendly, non-blueing, excellent in mechanical property and stable in Mooney.

The invention provides a method for synthesizing a lapatinib intermediate in a microchannel reactor, and belongs to the field of anticancer drug synthesis in organic synthesis. The method solves the problems that in a traditional synthesis process of a high-temperature high-pressure catalytic hydrogenation reactor, the yield and purity are low, violent explosion easily occurs to generate dangers,dechlorination and ether oxygen bond rupture and degradation are caused when the reaction time under high temperature is long, and the recycling and reusing rate of a catalyst is low. The method for synthesizing the lapatinib intermediate in the microchannel reactor comprises the following steps that 1) 2-chloro-1-(3-fluorobenzyloxy)-4-nitrobenzene is added into an organic solvent, and the activated-carbon-loaded noble metal catalyst is added, serves as a first material and enters a preheating module of the microchannel reactor or a microreactor; 2) the preheated first material and a second material hydrogen are injected into a reaction module set of the microchannel reactor or the microreactor for a reaction respectively, a reaction solution flowing out of a cooling module is collected, and 3-chloro-4-(3-fluorobenzyloxy)aniline is obtained after post-treatment. The method is suitable for the synthesis of the lapatinib intermediate.

The invention discloses a fluorescence probe for detecting nitrosyl peroxide by utilizing amido bond rupture and application of the fluorescence probe and relates to fluorescence probes of which fluorescence wavelengths have obvious displacement in the presence of ONOO<->. The invention provides a fluorescence probe capable of selectively detecting ONOO<-> in cells. A BODIPY dye and a naphthalimide dye serve as fluorescence matrixes respectively, an o-benzene selenium (tellurium) benzamide structure is introduced to serve as an activity center reacting with ONOO<->, and the ONOO<-> is selectively detected by utilizing the process of rupturing the amido bond after oxidization of organic selenium (tellurium) ether. Moreover, the influence on the fluorescence wavelength of the whole compound serves as a detection signal for probe identification before and after the amido bond rupture, and the probe is used for detecting fluorescence imaging of the ONOO<-> in the cells.

The invention discloses a domestic refuse suspension-type combustion carbonization pyrolysis system and a treatment technique thereof. The system is sequentially composed of a refuse conveying platform, a suspension-type pyrolysis combustion integrated furnace, a soda lye washer, a honeycomb plasma flue gas treatment device, a power pulse electrochemical photoelectric ion waste gas treatment device, a peculiar smell advanced treatment device containing high-energy oxygen nano water, a deduster and an induced fan. The treatment technique comprises the following steps: carrying out pyrolysis on domestic refuse, combusting, disacidifying by soda lye washing, carrying out plasma ionization to remove dust and tar, carrying out high-power narrow-pulse electron bombardment to promote bond rupture and recombination of stubborn harmful substances, removing flue gas and peculiar smell by using high-energy oxygen water, filtering through the deduster to remove dust, and discharging through the induced fan. The domestic refuse treatment technique disclosed by the invention has the advantages of high decrement degree and higher exhaust emission quality than national standard. The system using the technique has the advantages of low investment, simple operation, high safety and environment friendliness, low carbon and energy saving, and can comprehensively and basically solve the problem in domestic refuse.

The invention belongs to the technical field of organic chemical synthesis, and more specifically relates to a method used for preparing a pyrrolo[3, 2,1-ij] quinolinone compound. The method comprisesfollowing steps: in the presence of a catalyst, a Lewis acid, and an zinc reagent, an indoline compound represented by formula II and an alkyne represented by formula III are subjected to C-H bond activation / C-N bond rupture reaction so as to obtain the pyrrolo[3, 2,1-ij] quinolinone compound represented by formula. According to the method, indoline is reacted with the alkyne in the presence of the catalyst, the Lewis acid, and the zinc reagent in a solvent, so that synthesis of the pyrrolo[3, 2,1-ij] quinolinone compound is realized.

A biosensor comprises a surface onto which bio-macromolecules are bound, the surface and bio-macromolecules being immersed in liquid, a bond rupture detector associated with the surface and arranged to detect the rupture of bonds between the bio-macromolecules and a target substance ( 6 ), and an oscillator ( 8 ) associated with the liquid and spaced from the surface and arranged to produce oscillations in the liquid to cause bonds between the bio-macromolecules and the target substance ( 6 ) to rupture.

The present invention relates to the technical field of organosilicone industry, and is to solve the problem in the prior art that the hydrolysis oil requires repeated water washing in the process of synthetizing methylphenylsiloxane ring. The present invention provides a preparation method for methylphenylsiloxane ring. By the method, hydrolysis-generated HCl can be quantitatively absorbed to ensure that the hydrolysis oil is neutral or weakly alkaline. The oil can be used for cracking and rearrangement without special washing with water, at the same time the Si-Ph bond rupture is restrained maximally, the production of crosslinking byproducts are reduced, and the yield of the target product is improved.

The invention discloses a preparation method of a dual network sulfonated polyphenyl ether / acrylic composite material. The composite material is composed of a double-layer network, wherein the first layer is a network formed by crosslinking of sulfonated polyphenyl ether and an acrylate monomer; and the second layer is a network formed by crosslinking of metal ions and sulfonate of sulfonated polyphenyl ether. The preparation method of the dual network composite material comprises the following steps: S1) dissolving sulfonated polyphenyl ether, the acrylate monomer, a cross-linking agent and an initiator in a solvent and carrying out a polymerization reaction to obtain organogel; and S2) mixing the organogel and an ionic compound solution to carry out an ionic crosslinking reaction. By constructing the multi-layer network structure in the acrylate elastomer, strength of the material is enhanced; and through dissipation of energy by ionic bond rupture, toughness of the material is enhanced. According to the prepared dual network sulfonated polyphenyl ether / acrylic composite material, strength is enhanced while toughness is correspondingly increased.

The invention discloses alkali-activating-agent-doped early strength super-high performance concrete and a preparation method thereof. The concrete comprises, by mass, 1019-1059 parts of a cementing material, 1120-1271 parts of quartz sand, 165-205 parts of fibers, 20.38-21.18 parts of a water reducing agent, 12.2-25.6 parts of a de-foaming agent, 20.38-21.18 parts of an alkali activating agent and 152.85-180.03 parts of water. Under the effect of the alkali activating agent, the cementing material contains lots of Si-O and Al-O bond rupture, SiO4 and AlO4 tetrahedrons are made to be fast dissolved out, lots of inorganic high-molecular polymers are fast formed through a polycondensation reaction, the early strength of the concrete is improved fast, and the super early strength effect is achieved. The alkali activating agent is doped in, the initial setting time of the super-high performance concrete is greatly shortened, the super-high performance concrete is made to have very high early strength, the stripping time is shortened, and the circulation efficiency of preparation of the concrete is accelerated.

The invention provides a formation method of a semiconductor structure. The formation method of a semiconductor structure comprises the steps: providing a semiconductor substrate, wherein a plurality of grooves are formed in the semiconductor substrate; forming a first oxygen ambient silica layer on the surface of the side wall and the bottom of the grooves and on the surface of the semiconductor structure, wherein part of silicon atoms on the surface of the first oxygen ambient silica layer are connected with ethoxy; performing an inertia plasma processing technology to realize bond rupture between the ethyl and oxygen atoms in the ethoxy on the surface of the first oxygen ambient silica layer to form a silicon oxygen dangling bond; performing a water vapour processing technology to realize combination of the oxygen and the hydrogen in the silicon oxygen dangling bond on the surface of the first oxygen ambient silica layer to form a silicon oxygen hydrogen bond; performing an ultraviolet processing technology to remove the protium in the silicon oxygen hydrogen bond on the surface of the first oxygen ambient silica layer to form a silicon oxygen silicon bond; performing a second high aspect ratio deposition technology to form a second oxygen ambient silica layer on the surface of the first oxygen ambient silica layer; and removing the first oxygen ambient silica layer and the second oxygen ambient silica layer on the semiconductor substrate, and forming a shallow groove isolation structure in the grooves. The formation method of a semiconductor structure can increase the compactness of the shallow groove isolation structure.

The invention discloses a preparation method for an Fe-N-C catalytic material with controllable edge active sites. Under the premise of keeping the original MOF (metal-organic framework) morphology, the preparation method which adopts the method of in-situ embedded molecular aggregate and then high-temperature pyrolysis is intended to change the dosage of small molecules to regulate the frameworkpore structure and the degree of C-N bond rupture, and realizes the control of edge active site number and chemical environment around a single atom for the first time, thus achieving more excellent electrochemical properties. The method adopts an appropriate dosage of small molecules to obtain a ORR (oxygen reduction reaction) catalyst with the specific surface area of 1392.91m<2> / g, the half-wave potential in 0.1M KOH can reach 0.915V(vs.RHE), and the catalytic performance of the Fe-N-C catalytic material is better than the catalytic performance of commercial platinum-carbon catalyst and similar materials. Therefore, the method realizes atom-level active site control and molecule-level structure control, reference significance is provided for the reasonable design of high-performance single-atom catalysts.