Biopolymers for seed presowing treatment
The study of physico-chemical properties of modified forms of natural biopolymers – carboxymethyl cellulose and xanthan gums, their ability to film formation water-soluble polymeric compositions and the influence on growth and productivity of crops.
Подобные документы
The dedicate this work to describing the state of the art in biopolymers. A short case studies developed by the team that currently composes LaBioS, cover several areas, ranging from drug release, through environmental recovery, to food security.
статья, добавлен 13.04.2022The chemical structure of the polymer latexes. The influence of surfactants on the drip solution. The mechanism of anionic with a negative charge in the screed, acting as air entrainment. Hydrogen bonding, water absorption and compressive strength.
статья, добавлен 22.02.2015The temperature dependence of the sulfur and tin vapor. Influence of growth conditions on the morphology of the surface and structural properties of the films with the stoichiometric composition and substrate temperature on their chemical composition.
статья, добавлен 30.07.2016- 4. The influence of modified methyl cellulose on the main properties of expanding cementing slurries
The effect of modified methylcellulose on the main properties of expanding cementing slurries. When cementing low-temperature wells, expanding cementing slurries based on a mixture of Portland cement and gypsum alumina cement cement (30-25% GAC) are used.
статья, добавлен 20.03.2024 The use of block copolymers on the basis of oxides of ethylene and propylene as demulsifiers of oil emulsions. Determination of the dependence of their physico-chemical properties from the content oxyethylene and oxypropylene groups in the molecule.
статья, добавлен 23.02.2016Hierarchical structure and multi-level organization of cellulose. Preparation of cellulosic nanomaterials. Mechanically-induced deconstructing strategy. Cellulose properties (mechanical, thermal, and barrier) that change during nanoscaling process.
статья, добавлен 13.04.2022Physico-chemical characteristics of I-40 and MS-20 commercial mineral oils. The use of such oils for the lubrication of molds in the manufacture of glass containers. The study of the thermal stability of oils and their fractions of hydrocarbons.
статья, добавлен 23.02.2016Properties, combustion, electron energy levels. Elemental molecular forms. Covalent, organic compounds. Hydrides, protons, acids, isotopes. Discovery and use. Role in quantum theory. Natural occurrence, production: laboratory, industrial, thermochemical.
реферат, добавлен 13.11.2009The use of a sorbent to study the preliminary concentration of V (V) ions in the liquid phase. Establishment of optimal conditions for sorption. Influence of the concentration of metal ions and the time of reaching chemical equilibrium on sorption.
статья, добавлен 27.02.2021The study of the synthesis and physicochemical properties of derivatives of 4-phenyl-5-(1,2,3-benzotriazolyl 1)-3-merkapto-1,2,4-triazole(4H). Due to computer prognosis data the substances synthesized are prospective anticonvulsants and antiasthmatics.
статья, добавлен 05.03.2014Film materials with ion-exchange properties based on polymer obtained by condensation of oligoepichlorohydrin epoxide and piperazine with chemical modification. Compounds that have different thermodynamic affinities with the polymer and with each other.
статья, добавлен 30.10.2016The research conducted in the field of adsorption-catalytic extraction of H2S from low sulfurous natural gases and conversion into elemental sulfur using the synthetic CaA zeolite and natural modified adsorber mordenite as well as the palladium catalyst.
статья, добавлен 11.07.2018Physical parameter models. Thermodynamic parameter models. Brief review of the relationship between the solution model and phase equilibria. The modified quasi chemical (MQC) model. Basic quasi chemical theory. The modified binary quasi-chemical theory.
статья, добавлен 10.04.2017Study of the reaction of polyelectrolytes. Research of the structure and membrane properties of sodium carboxymethylcellulose and urea-formaldehyde oligomer. Development of technology for manufacturing biocompatible polymeric materials for medicine.
статья, добавлен 17.02.2019Chemical compositions of Portland cement. Possibility of using waste glass in building technology. A structure alkaline compounds. Study of fine-grinded glass. Influence additives on the induction and post-induction periods of Portland cement hardening.
статья, добавлен 23.02.2016Experimental study of interaction of water with the substrate and the role of cesium as a promoter for the adsorption of water on the strontium titanate surface. Enhancement of the catalytic properties of metal oxides by the addition of alkali species.
статья, добавлен 30.07.2016The behavior of globular proteins and humic acids of coal in aqueous/oil and aqueous/graphene systems by means of tritium tracer. Obtaining of adsorption isotherms by liquid scintillation spectrometry of tritium either in traditional performance.
статья, добавлен 02.04.2014To study antimicrobial properties of the synthesized surfactants, the method of consequent dilution was used. The experiments were carried out in the test tubes contained a surfactant at different concentrations and 1 ml of the physiological solution.
статья, добавлен 03.03.2021Homogeneous precipitation synthesis of nanocomposites - activated carbon – zirconium(IV) oxide. Characterization of samples by x-ray diffraction analysis and electron microscopy. Sorption properties and the degree of extraction of phosphate ions.
статья, добавлен 23.02.2016Investigation of optical absorption spectra of YAG: Cr, Mg, and GGG: Cr, Mg films during high-temperature annealing in oxidation and reduction atmospheres. Factors to increase in absorption in the visible region, the charge exchange of chromium ions.
статья, добавлен 29.09.2016Development of technological scheme for processing of oil extracted in Iraq. Characteristics and physico-chemical properties of the oils of Iraq. A description of the stages of oil refining. Calculations of material balances of each processing stage.
статья, добавлен 23.02.2016Study vapor dynamics and growth of crystals in the solution of the two components chemically neutral - water and sucrose. The conditions under which crystals can be transformed into a solution. Conservation equations for interfacial interactions.
статья, добавлен 24.02.2016The influence of low-molecular additives on the composition of polyvinylpyrrolidone with hydroxyethyl compositions. Adhesion based on the angle of wetting compositions. The effect of different additives on the adhesive strength of the adhesive joint.
статья, добавлен 21.12.2016Study of the disinfecting effect of the physical and chemical properties accompanying hydrodynamic cavitation on the sanitary index of microorganisms in water. Model for determining the result of disinfection in conditions of hydrodynamic cavitation.
статья, добавлен 21.12.2016Examined of the physical-chemical properties and thermal decomposition, as well as infrared spectrum of glass. Acquaintance with the results of the derivatographic analysis. Study of the coincidence of crystallization temperatures of glass decomposition.
статья, добавлен 26.02.2021