A5029080457- Advanced Polymer Synthesis and Characterization
- Supramolecular Chemistry and Complexes
- biodegradable polymer synthesis and properties
- Surfactants and Colloidal Systems
- Nonlinear Optical Materials Research
- Luminescence and Fluorescent Materials
- Synthesis and properties of polymers
- Photochemistry and Electron Transfer Studies
- Crystallography and molecular interactions
- Photopolymerization techniques and applications
- Molecular Sensors and Ion Detection
- Analytical Chemistry and Sensors
- Polymer Nanocomposites and Properties
- Photorefractive and Nonlinear Optics
- Hydrogels: synthesis, properties, applications
- Photochromic and Fluorescence Chemistry
- Conducting polymers and applications
- Silicone and Siloxane Chemistry
- Synthesis and Characterization of Heterocyclic Compounds
- Higher Education and Employability
- Energetic Materials and Combustion
- Sugarcane Cultivation and Processing
- Advanced Cellulose Research Studies
- Chemical Thermodynamics and Molecular Structure
- Lanthanide and Transition Metal Complexes
Institute of Macromolecular Compounds
2014-2024
Russian Academy of Sciences
2009-2014
Leibniz Institute of Polymer Research
2002
Thermoresponsive star-shaped poly(2-isopropyl-2-oxazoline) with t-butylcalix[8]arene core was studied by light scattering methods in aqueous solution. The sample under investigation has Mw = 19600 g mol−1 and PDI of arms 1.41. bimodal distribution objects observed even at room temperature. redistribution these two kinds particles takes place T 27°–36°C. At higher temperatures the growth large particles, disappearance small component, appearance-disappearance “middle-size” aggregates were...
Complex formation of various mono- and bis(hydroxyarylidene)alkanones with poly(1,10-decamethyleneacetamidine) in solution the solid phase was investigated by UV/vis NMR spectroscopy. It could be shown that due to strong basicity polyamidine a deprotonation chromophores occurred. This resulted significant shift longest wavelength absorption band higher wavelengths. Additionally, third-order nonlinear optical activity evidenced on cast films. Besides properties, thermal behavior mixtures also...
Properties of individual molecules star-like polystyrene with calix[8]arene core in dilute chloroform solutions were studied using methods static light scattering, translation diffusion, and viscometry. The solution behavior the polymer investigated significantly differs from properties linear polymers. Star-like macromolecules are characterized by compact structure—the hydrodynamic radius is not higher than 5.5 nm at M = 125,000 g⋅mol−1. shape slightly spherical.
Thermosensitive star-shaped poly(2-isopropyl-2-oxazoline) (molar mass M≈21000 g mol−1) in D2O solution was studied by the static and dynamic light scattering methods. The behavior of polymer investigated deuterated water is similar qualitatively to that observed previously undeuterated water. At same time, considerable quantitative changes were seen. Deuterium substitution solvent affects phase transition temperature decreasing its value 1°C. interval expands (by about 1°C) comparison with...
Abstract Intercalation of guest species into layered inorganic solids is a method producing ordered inorganic–organic assemblies with unique microstructures controlled by host–guest and guest–guest interactions. Smectite clay minerals, such as montmorillonite, having appropriate functional molecules in between the silicate layers are supposed to exhibit wide range novel characteristics. Nanocomposite material based on maleic anhydride‐grafted polypropylene dye‐modified was developed....
The interaction of silver nitrate with star-shaped poly(2-ethyl-2-oxazoline) and poly(2-isopropyl-2-oxazoline) containing central thiacalix[4]arene cores, which proceeds under visible light in aqueous solutions at ambient temperature, was studied. It found that this process led to the formation stable colloidal nanoparticles. kinetics nanoparticles investigated by observation a time-dependent increase intensity plasmon resonance peak is related appears range 400 700 nm. According data...
Multicenter polyester initiators intended for the cationic polymerization of oxazolines were synthesized via high‐temperature polycondensation 2‐(4‐(2‐bromoethyl)phenyl sulfonyl hydroquinone with a number aromatic and alkylene‐aromatic dichloroanhydrides. The Kuhn segment values, liquid‐crystalline properties, molecular‐mass characteristics macroinitiators are determined. used in ring‐opening to obtain hybrid comb polymers containing poly(2‐oxazoline) side chains. It was suggested method...
Interactions of phenolic and carboxylic group containing chromophores (hydroxyarylidene alkanones) with polyamidines were investigated by UV/vis 1H NMR spectroscopy. Because the strong basicity polyamidines, deprotonation was observed. Deprotonation is accompanied a change electronic structure chromophore resulting in bathochromic shift longest wavelength absorption band. Increased interactions are observed after introduction into chromophore. It could be shown that favored so only starts...
Abstract Interactions of phenolic and carboxylic groups containing chromophores (hydroxyarylidene alkanones) with polyamidines were investigated ultraviolet–visible spectroscopy dynamic light scattering experiments. Because the strong basicity polyamidines, deprotonation was observed. The ionic network formation process depended on method complex preparation. step‐by‐step addition chromophore to an excess polyamidine led incorporation dye molecules inside polymer coil, only after this did...