Synthesis and study of the properties of amphiphilic poly-N-vinylpyrrolidone with terminal thioalkyl groups
Radical polymerization with a thiol-type chain transfer agent of poly-N-vinylpyrrolidone-based amphiphilic polymers, which can be used as drug carriers. Critical micelle concentration and its dependence on the molecular weight of the diblock copolymers.
Подобные документы
Synthesis of a methacrylic azomonomers based on para-aminoacetanilide to obtain functionalized polymers for orientation of liquid crystals. The kinetics of polymerization of synthesized azomonomers. Constants of thermo-induced radical polymerization.
статья, добавлен 21.12.2016Synthesis of block copolymers via the polymerization of methyl methacrylate initiated by Ce4 - PEG system using a functional peroxidecontaining the services of an agent. Rheological and colloidal-chemical characteristics of new polyampholitic surfactant.
статья, добавлен 23.02.2016Obtaining a biodegradable polymer material with satisfactory thermal properties. Synthesis of copolyester, poly (ethylene phthalate-propylene succinate) by direct polycondensation from ethylene glycol, polypropylene glycol, phthalic and succinic acid.
статья, добавлен 15.01.2021The 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 23.02.2016The polymers built with the use of the free radical polymerization of methacrylic monomers incorporating an azobenzene side-group and monomers with benzylidene fragments. The results of photochemical and optical activities of the corresponding elements.
статья, добавлен 29.09.2016Phylogenetic study of the structural elements of poly(a) region of human immunodeficiency virus type 1 (HIV-1) to stimulate polyadenylation HIV-1 transcription and TRANS-activation response hairpin that combines space and uses the AAUAAA signals.
статья, добавлен 27.03.2016Using measurements of surface tension, solubilization, and fluorescence spectroscopy, the detection of polyesters based on aliphatic dicarboxylic acids and PEG-1000 to form monomolecular micelles in aqueous solutions at the concentrations of 10-7-10-4 %.
статья, добавлен 23.02.2016Monomers conversion dependence on reaction mixture composition. Consideration of the dependence cooligomer of and its characteristics, average molecular weight. Study of liquid products of pyrolysis of hydrocarbons: styrene and dicyclopentadiene.
статья, добавлен 23.02.2016- 9. Preparation and properties of hybrid poly(3,4-ethylenedioxythiophene)–carbon nanotubes composites
It was investigated the infrared spectra of the hybrid composites poly. The current-voltage characteristics of the obtained materials. It is shown that increasing the content of carbon nanotubes leads to decrease of the resistance of hybrid films.
статья, добавлен 30.07.2016 The structure of the metal-containing azopolymers with electro-optical properties depending on the length of the spacer. Effect of electric field on absorption of metal-containing azopolymers. Reorientation of the dipole moments azobenzene groups.
статья, добавлен 21.12.2016Polymers, inorganic and organic, amorphous and crystalline substances consisting of "Monomeric units" connected in a long macromolecule chemical bonds. Molecular modeling of melting process of solid polymers in the transition and plastic deformation.
статья, добавлен 23.02.2016Chemical identification of polymer additives and its significance for links in the plastics supply chain. The effect of additives on the properties of materials and on the cost of production of polymers. Quantitative determination of polymer additives.
статья, добавлен 10.03.2019The 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 05.03.2014Study of synthesis of silica-based organic-inorganic hybrid materials with grafted 2-aminoethylpyridine functional groups. By elemental analysis to determine the composition of substances. Analysis of surface-structural characteristics of SiAEP.
статья, добавлен 02.04.2014This paper describes the synthesis of sodium alginate/hydroxyapatite composites and the influence of the presence of Alg on HA crystallization. It was shown that the presence of Alg and the increase of its concentration leads to the decrease of the HA.
статья, добавлен 30.07.2016Synthesis of sorption-active material carrying groups 5% chlorosulfonic acid by radiation-induced graft polymerization of styrene monomer on the surface of non-woven polypropylene fabric with subsequent sulfonation of the grafted polystyrene chains.
статья, добавлен 02.04.2014Analysis of the method of synthesis of new materials with carboxylic acid groups, based on the template method, was developed. The efficiency of this methodology was demonstrated by powder x-ray diffraction, infrared spectroscopy and thermal analysis.
статья, добавлен 02.04.2014Molecular geometry - the general shape of a molecule or the arrangement of atoms in three dimensional space. Physical and chemical properties of an atom. Main examples of predicting molecular geometry. The valence shell electron and her repulsion.
презентация, добавлен 16.10.2014To 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 03.03.2021Studies, the specificity of interphase interactions and features of the formation of nanoheterogeneous structure in polymer system. Determining the structure of interfacial region, the supramolecular structure and mechanical properties of the composites.
статья, добавлен 30.07.2016Models of 5,10-methylenetetrahydrofolate in organic synthesis and their reactions. Syntheses using mononucleophiles and binucleophiles. Molecular mechanism of carbon transfer reactions. Designs of models of coenzyme 5,10-methylenetetrahydrofolate.
статья, добавлен 05.03.2013The 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 21.12.2016A controlling the morphology of zinc hydroxide and zinc oxide at room temperature without using any template or surface ligand. Identify the precipitated materials. Dependence of ZnO morphology on Zn2+ concentration. Scanning electron microscopy of zinc.
статья, добавлен 30.07.2016The dependence of spectral properties and interfragmental charge transfer on excitation, relaxation and excited state deactivation of 2-(3-coumaroyl)-benzopyrylium perchlorates. The positions of emission bands and rate constants of radiationless.
статья, добавлен 29.09.2016New facile method for the controllable synthesis of high quality single-phase nanowires with from nanowires templates. Detailed characterization of the superconducting and transport properties of nanowires. Synthesis of porous nanowires and nanotubes.
статья, добавлен 30.07.2016