113 results about "Conjugate acid" patented technology

A lubricant including an ionic liquid, which includes a conjugate acid (B+) and a conjugate base (X−), and is protic, wherein the conjugate acid includes a straight-chain hydrocarbon group having 10 or more carbon atoms, and wherein the conjugate base is represented by the following general formula (1):where n is an integer of from 0 to 6 in the general formula (1).

A lubricant including: an ionic liquid, which includes a conjugate acid (B+) and a conjugate base (X−), and is protic, wherein the ionic liquid is represented by the following general formula (1), and wherein the conjugate base is a conjugate base of sulfonic acid, a conjugate base of sulfonimide, or a conjugate base of trisulfonylmethide:where R1 and R2 each represent a hydrogen atom or R1 and R2 form a benzene ring together with carbon atoms to which R1 and R2 are bonded, R3 represents a to straight-chain hydrocarbon group having 10 or more carbon atoms, and R4 represents a hydrogen atom or a hydrocarbon group in the general formula (1).

An antireflection film comprising a support and a layer formed by coating a composition containing at least one salt formed from an organic base whose conjugate acid has a pKa of from 5.0 to 10.5 and an acid, wherein the antireflection film has a haze value due to surface scattering of 1% or more and less than 10%, or an antireflection film comprising a support and a layer formed by coating a composition containing at least one salt formed from a nitrogen-containing organic base having a boiling point of from 35° C. to 85° C. and an acid, wherein the antireflection film has a haze value due to surface scattering of 1% or more and less than 10%.

Positive-working imageable elements can be imaged and processed using a processing solution that comprises at least 0.03 N of an organic amine or a mixture thereof, whose conjugated acids have a pKa greater than 9 and a boiling point greater than 150° C. The imageable element is a single-layer, infrared radiation-sensitive positive-working imageable element comprising a substrate and an infrared radiation absorbing compound. It also has an imageable layer that comprises a developability-enhancing compound and a poly(vinyl acetal) in which at least 25 mol % of its recurring units comprise pendant phenol, naphthol, or anthracenol groups that are substituted with one or more electron-withdrawing groups.

The present invention provides a water based lithium secondary battery that can inhibit deteriorations in capacity owing to charge-and-discharge operations and maintain a high capacity even after it is charged and discharged repeatedly. The water based lithium secondary battery includes a positive electrode, a negative electrode, a separator sandwiched between these, and an aqueous electrolyte solution obtained by dissolving an electrolyte made of a lithium salt in a water based solvent. As the water based solvent, a pH buffer solution is employed. The buffer solution is obtained by dissolving an acid and its conjugate base's salt, a base and its conjugate acid's salt, a salt made from a weak acid and a strong base, a salt made from a weak base and a strong acid, or a salt made from a weak acid and a weak base in water.

An antireflective film is provided and including: a support; and a layer formed from a composition containing inorganic particles and at least one salt. The at least one salt contains an acid and an organic base, the conjugate acid of the organic base having pKa of 5.0 to 11.0.

The invention relates to a preparation method of carboxyl nitrile rubber through emulsion polymerization. According to the preparation method, acrylonitrile, an emulsifier, an adjusting agent, and an initiator are added into a polymerization kettle, then butadiene is added, emulsion polymerization is carried out under stirring, and in the late phase of emulsion polymerization, unsaturated carboxylic acid and / or anhydride thereof is added into the polymerization kettle. The obtained carboxyl nitrile rubber has a low content of gel and a two-layer molecular structure, the index of conjugated acid is controllable; during the processing process, a three-dimensional network structure can be easily formed, thus the mechanical and physical properties of rubber products made of the carboxyl nitrile rubber are good; after processing, the Mooney viscosity is increased, the crosslinking degree of finished products is good, and especially, the elongation at break is prominently improved.

Protic ionic liquids having a composition of formula (A−)(BH+) wherein A− is a conjugate base of an acid HA, and BH+ is a conjugate acid of a superbase B. In particular embodiments, BH+ is selected from phosphazenium species and guanidinium species encompassed, respectively, by the general formulas:The invention is also directed to films and membranes containing these protic ionic liquids, with particular application as proton exchange membranes for fuel cells.

This invention is alumina diolame phosphor powder; it is coated of Al2O3 on phosphor powder surface. Its coating method is that buffer solution is made-up by conjugate acid-base system eith Ph value is between 4.5~6.0, and its concentration is between 0.1M and 2M. Concentration is 0.01~1.0M water soluble aluminium salt solution is made-up by Al2O3 and phosphor powder and equal quality water soluble aluminium salt, the weight ratio of Al2O3 and phosphor powder is (0.25~20):100. Phosphor powder is added into buffer solution to make-up water soluble aluminium salt of 0.0.1~1.0M concentration. It is agitated and ultra sonic dispersed to make phosphor powder disperse in buffer solution. The phosphor powder suspension is heated to 20~600C, and agitated at speed of 100r / m~300r / m, then water soluble aluminium salt is added into suspension, dropwise velocity is 5~500ml / min. The temperature is holding and agitated for 30~120min. Finally, mother liquor is adjusted by alkali solution to pH value is 6~7, then alumina hydrate is got. alumina diolame phosphor powder is got after separation, water washing, dehydration, and is dried at 60~1200C to make water content of phosphor powder is low of 0.25%, and ignited 1~3hours at 200~4000C and air cooling in stove.

A method of regenerating N-Methyl-D-glu-camine-functional resin that has been used for boron-removal uses a closed recirculating loop for treating the conjugate acid salt of the N-Methyl-D-glucamine functionality of the resin. The new method reduces rinse water demand and improves pH control in a water treatment system. The new method can be used to improve the performance of boron-selective resins in stand-alone systems or as a second stage in a reverse osmosis seawater desalination system. The regeneration method is useful in any application where weakly basic anion exchange resin in the conjugate acid salt form is to be regenerated (neutralized) by alkaline treatment. Possible end use applications are in drinking water processing, agricultural water treatment, sweetener production, waste water processing, mining hydrometallurgy, and condensate polishing.

The invention relates to a renewable flue gas desulfurization agent and the preparation method thereof. The flue gas desulfurization agent is the aqueous solution of 1,4-bis(2-hydroxypropyl) piperazinyl sulfate containing 30% of 1,4-bis(2-hydroxypropyl) piperazinyl by mass. The flue gas desulfurization can be prepared from the of 1,4-bis(2-hydroxypropyl) piperazinyl and other raw materials, by mixing according to a certain proportioning at normal temperature. Because the pKa1 of the conjugate acid of the 1,4-bis(2-hydroxypropyl) piperazinyl is 3.8, and the pKa2 of that is 8.2, the obtained flue gas desulfurization agent achieves the advantages of large absorbing capacity, high de-absorbing ratio, low de-absorbing temperature and suitable temperature difference in the absorbing and de-absorbing process; can reduce the energy consumption in absorbing and de-absorbing process obviously, and is very suitable for the application in process of removing SO2 in discharged flue gas in coal fired power plant and so on.

A water- and oil-repellent, antistatic composition comprises (a) at least one polymeric salt consisting of (i) at least one cation having at least one polyoxyalkylene moiety bonded to a cationic nitrogen center, and (ii) at least one weakly coordinating anion, the conjugate acid of the anion having an acidity greater than or equal to that of a hydrocarbon sulfonic acid; (b) at least one fluorochemical repellent; and (c) at least one insulating material. The composition exhibits good antistatic and repellency characteristics.

The invention relates to a chemical product and a preparation technology thereof, in particular to sulfonic-functionalized caprolactam acidic ion liquid and a preparation method thereof. The ion liquid has the following structural general formula shown in the specification, wherein B<-> is selected from the following anions: hydrogen sulfate radicals, p-toluene sulfate radicals, formate radicals, phosphate radicals, and acetate radicals. The preparation method comprises the steps of: firstly, mixing a caprolactam water solution with the concentration of 5-10mol / L with 1,4-butane sultone in the molar ratio of 1:1.1 for reaction for 6-24 h at the temperature of 25-80 DEG C; and then, reacting a reaction product with conjugate acid of the paired anion B<-> in the molar ratio of 1:1 for 4-6h. The preparation method provided by the invention has the advantages that the raw materials are cheap and are easy to obtain and the synthesis steps are simple and convenient and are easy to popularize and apply; the varieties of anions can be adjusted as required so as to satisfy requirements on different acidities so that stronger adjustability is achieved; and the synthesized ion liquid is more degradable than ion liquid of imidazole and pyridine, and is more environmental-friendly and recyclable.

The present invention discloses a chemically amplified resist composition comprising: a resin which becomes soluble in an aqueous alkali solution in the presence of an acid, a photo acid generator, and an amine derivative which shows, in water of 25° C., such a basicity as to form a conjugate acid and has a medium polarity. The amine derivative acts as a quencher. Therefore, the chemically amplified resist composition of the present invention enables formation of a very precise and fine resist pattern and can be suitably used particularly in a lithography using an ArF excimer laser beam.

The invention discloses a method for catalyzing propene epoxidation by taking Titanium Silicalite-1(TS-1) as a catalyst, wherein hydrogen peroxide is taken as an oxidant, and Titanium Silicalite-1(TS-1) is taken as the catalyst. A ring-opening reaction of epoxypropare and a solvent can be inhibited effectively by adding a small amount of inorganic alkali buffer solution in a liquid reactant; a buffer agent can be ammonium salt, borate, phosphate or other alkali buffer solvents; and an inorganic salt alkali buffer solution is a mixed solution composed of a weak-base salt and conjugate acid thereof and can be taken from weak base of ammonium salt, borate, phosphate or carbonate, and the corresponding negative ion is Cl<->, Br<->, NO<3-> or SO4<2->, and the positive ion is Li<+>, Na<+> or K<+>. The selectivity of epoxypropare can reach 97.49%, the yield of the epoxypropare can reach 96.56%, and the conversion rate of hydrogen peroxide can reach 99.12%.

A resist composition which generates acid upon exposure and exhibits changed solubility in a developing solution by the action of acid, and which includes a base component which exhibits changed solubility in a developing solution by the action of acid, and a nitrogen-containing compound which has a boiling point of 50 to 200° C., a conjugate acid thereof having a pKa of 0 to 7, and a photodecomposable base; and a method of forming a resist pattern using the resist composition.

A shelf-stable fast-cure aqueous coating is disclosed. The coating contains an anionically stabilized latex, a polyfunctional amine and a volatile base that also allows for a chelated metal oxide such that an amount sufficient to deprotonate the conjugate acid of the amine is provided.

A preparation method for a high-purity ionic liquid is disclosed, which orderly comprises five steps of metathetical reaction, ion exchange for removing halide ions, ion exchange for removing potassium ions, acid-alkali neutralization and solvent recovery. The method specifically comprises the following steps of: performing stirring reaction on the haloid of a target cation and potassium hydroxide for 2-24 hours in ethanol, and filtering to remove potassium halide, so as to obtain an alkaline liquid containing the target cation; adding water to dilute, and removing the residual halide ions and potassium ions through an anion exchange unit and a cation exchange unit orderly; and performing neutralization reaction for 2-6 hours with the conjugate acid of a target anion to obtain ionic liquid solution, filtering to remove solid insoluble substances, evaporating to recover a solvent, and drying to obtain the high-purity ionic liquid. Showed in the figure, the method disclosed by the invention is simple in technical process, good in the quality of product, low in cost, capable of unifying a plurality of ionic liquids in common technology, and with great industrialization prospect.

Disclosed is the magnesia integument phosphor powder covered with magnesia on the surface of the phosphor powder.The method of integument comprising: preparing pH buffer with the concentration between 0.1-0.2M by employing conjugate acid and base system with the pH value between 8.0-12.0, weighing relevant quantity of water-soluble magnesium salt according to the proportion between magnesia and phosphor powder by weight (0.25~15): 100, preparing water-soluble magnesium salt volumetric solution with the concentration between 0.01~1M; preparing phosphor powder suspension with the concentration 0.2~5% by adding the phosphor powder into the buffer, stirring, dispersing with supersonic wave to make the phosphor powder dispersed in the buffer; heating the phosphor powder suspension to 20~70 DEG C and keeping the temperature, stirring with speed 100r / m~ 300r / m and dropping the water-soluble magnesium salt volumetric solution into the phosphor powder suspension at the speed of 2~15ml / min, then keeping the temperature and stirring for 30~180 minutes and getting the integument phosphor powder suspension, separating, washing, dewatering and drying at 60-120DEG C, making the integument phosphor powder moisture percentage below 0.25%,incandescing at 200~400 DEG C for 1~3 hours and air cooling in the furnace.

The invention discloses an arsenic-trioxide-carrying pH-responsive mesoporous silica nanoparticle and a preparation method thereof. The preparation method of the arsenic-trioxide-carrying pH-responsive mesoporous silica nanoparticle mainly comprises the following steps: preparing amino modified mesoporous silica by adopting a coprecipitation method, and loading conjugate acid and base ATO and PAA through electrostatic adsorption for preparing PAA-ATO-MSNs. The prepared PAA-ATO-MSNs are circular or quasi-circular in appearance under a transmission electron microscope, average particle size is (158.6+ / -1.32)nm, Zeta potential is (-28.40+ / -0.34)mV, and encapsulation efficiency and drug loading rate are (40.95+ / -3.21)% and (11.42+ / -1.75)% respectively; in vitro drug release is pH-responsive, and accumulated release amount is increased along with reduction of pH value; pharmacokinetic study shows that compared with ATO-Sol and ATO-MSNs, t1 / 2beta of PAA-ATO-MSNs is obviously prolonged and AUC is obviously increased (P is less than 0.01); and PAA-ATO-MSNs in vitro drug release has obvious pH responsiveness and sustained release property, in vivo pharmacokinetic behaviours of a rat can be obviously improved, and the arsenic-trioxide-carrying pH-responsive mesoporous silica nanoparticle carrier can serve as an ATO tumour-targeted drug delivery system and has a good application prospect.

Provided is a solid electrolyte composition including nonspherical polymer particles; a dispersion medium; and an inorganic solid electrolyte, in which the nonspherical polymer particles is formed of a polymer having at least one of a specific functional group, an acidic group having an acid dissociation constant pKa of 14 or less, or a basic group having a conjugate acid pKa of 14 or less.

The invention discloses a preparation method of polyester-polycarbonate-polyester multi-block copolymer and belongs to the technical field of high molecular materials. The preparation method comprises the steps that a multi-block polymerization is completed through a 'one-pot method', in another word, a Bronsted acid catalyst sequentially catalyzes cyclic lactone and cyclic carbonate for achieving ring opening polymerization, then a preset amount of tertiary amine R<3>N which is excessive relative to acid is input, wherein conjugate acid R<3>N<+>-H<delta+> formed by alkali which is equal to acid in a system in proton number serves as a hydrogen bond donor, spare alkali serves as a hydrogen bond receptor, ring opening polymerization of lactide which is finally input is catalyzed in a bifunctional mode, and the polyester-polycarbonate-polyester triple-block copolymer is finally synthesized. The preparation method has the advantages that the catalyst is simple in structure and easy to obtain, the reaction is mild and high in efficiency, the 'one-pot method' is easy and convenient to operate, the whole polymerization reaction exhibits active characteristics, the polymer molecular weight is controllable, and molecular weight distribution is narrow.

The present disclosure relates to salts and compositions of isophosphoramide mustard and isophosphoramide mustard analogs. In one embodiment the salts can be represented by the formula wherein A+ represents an ammonium species selected from the protonated (conjugate acid) or quaternary forms of aliphatic amines and aromatic amines, including basic amino acids, heterocyclic amines, substituted and unsubstituted pyridines, guanidines and amidines; and X and Y independently represent leaving groups. Also disclosed herein are methods for making such compounds and formulating pharmaceutical compositions thereof. Methods for administering the disclosed compounds to subjects, particularly to treat hyperproliferative disorders, also are disclosed.

A composition for forming an electroactive coating is described, including an acid as a polymerization catalyst, at least one functional component, and at least one compound of formula (1) as a monomer: wherein X is selected from S, O, Se, Te, PR2 and NR2, Y is hydrogen (H) or a precursor of a good leaving group Y- whose conjugate acid (HY) has a pKa of less than 30, Z is hydrogen (H), silyl, or a good leaving group whose conjugate acid (HY) has a pKa of less than 30, b is 0, 1 or 2, each R1 is a substituent, and the at least one compound of formula (1) includes at least one compound of formula (1) with Z=H and Y<>H.

The present invention discloses an emulsion polymerization process that comprises: (1) preparing an aqueous polymerization medium which is comprised of (a) at least one monomer, (b) a polymerization control agent, and an emulsifier, wherein the emulsifier is prepared in-situ within the aqueous polymerization medium; and (2) initiating polymerization of said monomer within the aqueous polymerization medium. The subject invention more specifically reveals an emulsion polymerization process that comprises: (1) preparing a monomer solution which is comprised of (a) at least one monomer, (b) a conjugate acid of a surfactant with a pKa of less than 14, and (c) a controlled free radical polymerization agent; (2) preparing an aqueous medium which is comprised of (a) water, and (b) a conjugate base of a weak acid wherein the pKb of the base is less than 14; and (3) mixing the monomer solution with the aqueous medium under conditions that result in the in-situ formation of an emulsifier, and (4) initiating free radical polymerization.

A composition for forming an electroactive coating is described, including an acid as a polymerization catalyst, at least one functional component, and at least one compound of formula (1) as a monomer:wherein X is selected from S, O, Se, Te, PR2 and NR2, Y is hydrogen (H) or a precursor of a good leaving group Y− whose conjugate acid (HY) has a pKa of less than 30, Z is hydrogen (H), silyl, or a good leaving group whose conjugate acid (HY) has a pKa of less than 30, b is 0, 1 or 2, each R1 is a substituent, and the at least one compound of formula (1) includes at least one compound of formula (1) with Z=H and Y≠H.

The present invention relates to a composition comprising a hydrophobically modified alkylene oxide urethane polymer with pendant or end-capping tertiary amine groups, the conjugate acids of which have a pKa in the range of about 4.5 to about 6.5. The composition of the present invention is useful as a rheology modifier for paint formulations formulated over a wide pH range and is more stable to heat aging than higher pKa amine-modified HEURs.