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394results about How to "Soluble in water" patented technology

Amphoteric ionic polymer clay stabilizer and preparation method

InactiveCN102660247AIncrease molecular rigidityEnhanced encapsulationDrilling compositionSodium AcrylateAqueous solubility
The invention relates to an amphoteric ionic polymer clay stabilizer and a preparation method thereof. The polymer has water solubility, is low in use level and shows excellent temperature resistance and shear resistance. According to the technical scheme, the amphoteric ionic polymer clay stabilizer is prepared from the following raw materials and monomers in percentage by mass: 53.5-59.9 percent of acrylamide AM; 40-45 percent of sodium acrylate NaAA (obtained from neutralization of crylic acid and sodium hydroxide), 0.1-1.5 percent of N-allyl oleamide NAO and 0.1-1.5 percent of dimethyl diallyl ammonium chloride DMDAAC. The preparation method comprises the following steps: firstly adding NAO in a reactor, then adding an emulsifier and water; after complete emulsification, adding AM, NaAA, DMDAAC to prepare a solution with the total mass percentage concentration of monomer being 10-25 percent, adjusting pH to be 6-8, and introducing N2 for 20 min; then adding an initiator, continuing to introduce N2 for 20 min, and reacting for 8-12 h at 30-70 DEG C; washing with absolute ethyl alcohol, grinding and drying to obtain AM/NaAA/DMDAAC/NAO quadripolymer. The result of an anti-swelling test of 0.2wt% solution shows that the anti-swelling rate can reach 86 percent.
Owner:SOUTHWEST PETROLEUM UNIV

Preparation method of water-soluble composite InP/ZnS luminescent quantum dots for fingerprint appearance

The invention discloses a preparation method of water-soluble luminescent quantum dots for fingerprint appearance, belonging to the field of biomarkers. The chemical composition of the water-soluble luminescent quantum dots is InP/ZnS. The preparation method comprises the following steps: under the inert atmosphere, weighing and adding an indium source, a phosphorus source, a surface active agent and a methylbenzene solvent of proper amount at certain stoichiometric ratio into a reactor, wherein the heating temperature is 150-200 DEG C, reacting for 18-36 hours to obtain gray black solution; using methyl alcohol to clean for a plurality of times; putting products in a vacuum drying box at certain temperature, drying for 8-12 hours to obtain solid powder of InP; dissloving a certain amount of solid powder into an organic solvent, adding alkaline solution (pH is 7.5-10.5) containing mercaptoacetic acid and zinc ions, stirring for a period of time at the temperature of 40-60 DEG C; removing an upper organic layer and obtaining lower-layer water-phase solution; and taking a certain amount of solution, adding the alkaline solution containing the mercaptoacetic acid and the zinc ions, stirring for 0.5-1.5 hours under the irradiation of ultraviolet light and obtaining water-soluble InP/ZnS end products.
Owner:BEIJING UNIV OF CHEM TECH

Selenium-rich composite vegetable powder and preparation method thereof

The invention relates to selenium-rich composite vegetable powder and a preparation method thereof. The selenium-rich composite vegetable powder mainly consists of the following raw materials in parts by mass: 30-40 parts of arctium lappa powder, 60-120 parts of pumpkin powder, 30-50 parts of spinach powder, 40-70 parts of Chinese yam powder, 30-60 parts of broccoli powder, 12-20 parts of selenium-rich carrot meal, 8-14 parts of selenium-rich henry steudnera tuber powder, and 10-18 parts of selenium-rich spirulina powder. The preparation method of the selenium-rich composite vegetable powder comprises the following steps of checking the raw materials, and screening the checked raw materials with a 40-mesh sieve; compounding the components in a compounding ratio; and performing superfine comminution so as to obtain the composite vegetable powder which can be directly brewed for drinking. The composite vegetable powder is rich in selenium, can provide selenium required by daily life of people, and can guarantee the health of bodies. The composite vegetable powder is natural and primary in taste, and rich in vitamins, dietary fibers, protein, plant crude fibers, iron, calcium, selenium and the like, has multi-vitamins and nutrients, and is high in water solubility, easy to absorb and favorable for health.
Owner:HUANGSHAN HESHI BIOLOGICAL FOOD TECH CO LTD

Amido functional group polysiloxane and composition based on the same

The invention relates to an amino functional polysiloxane with formulas III and IV, a preparation method thereof and the use as a binder, and the composite based on the amino functional polysiloxane, in particular to the stable chloride-free composite of polysiloxane acidic salt and the preparation and use thereof. The R<1> and R<2> are independent and are respectively expressed by R<1> as -(CH2) pAr<1>, -(CH) pAr<1>, -(CH) pAr<1>-(CHCH2) or -(CH2) pAr<1>-(CHCH2) and/or R<2> as -(CH2) qAr<2>, -(CH) pAr<2>, -(CH) pAr<2>-(CHCH2) or -(CH2) pAr<2>-(CHCH2)-, wherein, p is equal to or more than 0 and equal to or less than 8, q is equal to or more than 0 and equal to or less than 8, and Ar<1> and Ar<2> correspond to aryl, aralkyl or aralkenyl, and n is equal to or more than 1 and equal to or less than 8, m is equal to or more than 1 and equal to or less than 8, Y is the same or different and represents alkoxyl or oxhydryl or O1/2; A is inorganic or organic acidic residue and actually exists as T-structure unit, and a is equal to or more than 0 and equal to or less than 2, b is equal to or more than 0 and equal to or less than 1, c is equal to or more than 0, c<*> is equal to or more than c, (a+b) is equal to or more than 0 and equal to or less than 3 and x is equal to or more than 2. The amino functional polysiloxane is also used as the binder between inorganic and organic surfaces or used in the process of coating organic polymer to inorganic surfaces, and the thickness of amino functional polysiloxane layer is less than 800nm.
Owner:GOLDSCHMIDT CHEM CORP

Electroactive polymer with water solubility and biological degradability, preparation method thereof and application thereof

The invention discloses an electroactive polymer with water solubility and biological degradability, which is prepared by a method comprising the following steps: preparing sodium polyaldehyde alginate by oxidizing sodium alginate with sodium periodate; preparing eigenstate phenyl/amino end-capped aniline oligomer by an oxidative coupling method; reducing the eigenstate phenyl/amino end-capped aniline oligomer to obtain fully reducedphenyl/amino end-capped aniline oligomer; and introducing the fully reducedphenyl/amino end-capped aniline oligomer into the sodium polyaldehyde alginate by the reaction of terminal amino in the fully reducedphenyl/amino end-capped aniline oligomer and the aldehyde in the sodium polyaldehyde alginate to obtain the aniline oligomer modified sodium polyaldehyde alginate. The invention also discloses a preparation method and application of the polymer. The polymer has the advantages of biocompatibility, water solubility, electroactive, degradability and the like; the preparation method of the electroactive polymer is simple in process and easy to control; and the electroactive polymer can be used in the field of injectable tissue engineering bracket materials or manufacturing of biological medicinal devices requiring electroactive.
Owner:THE FIRST AFFILIATED HOSPITAL OF SUN YAT SEN UNIV +1
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