A5086826615- Conducting polymers and applications
- Supercapacitor Materials and Fabrication
- Electrochemical sensors and biosensors
- Advanced Polymer Synthesis and Characterization
- Silicone and Siloxane Chemistry
- Polymer composites and self-healing
- Adsorption and biosorption for pollutant removal
- Advanced Biosensing Techniques and Applications
- Polyoxometalates: Synthesis and Applications
- Surface Modification and Superhydrophobicity
- Polymer Nanocomposites and Properties
- Pineapple and bromelain studies
- Marine Biology and Environmental Chemistry
- Nanocomposite Films for Food Packaging
- Polymer Surface Interaction Studies
- Synthetic Organic Chemistry Methods
- Dye analysis and toxicity
- biodegradable polymer synthesis and properties
- Protein purification and stability
Czech Academy of Sciences, Institute of Macromolecular Chemistry
2006-2022
Czech Academy of Sciences
2020
Abstract Aliphatic polycarbonate‐based polyurethane (PC‐PU) elastomers as well their nanocomposites with organic‐modified clay (bentonite for organic system) were synthesized. Macrodiols (MD) (randomly copolymerized aliphatic PC‐glycols of molecular weight about 2000: T5652, T4672, and T4692), hexamethylene diisocyanate, butane‐1,4‐diol used starting materials. Solid‐state NMR Fourier transform infrared spectroscopy, small‐angle X‐ray scattering, wide‐angle diffraction, atomic force...
New types of materials were produced by gradual heating a conducting polymer, polypyrrole, to elevated temperatures.
Polyaniline (PANI) is one of the promising candidates for utilization as electrode material in supercapacitors, and its electro- physical–chemical properties have been studied several decades. However, there are fundamental questions that need to be answered. For example, it possible obtain characterize individual PANI chains or what impact interactions on behavior? To end, we isolated characterized alongside nanofibrillar assemblies first time, moreover, demonstrate interaction between...
Abstract The macropores of melamine sponge were coated with globular polypyrrole or nanotubes. resulting materials have been tested for the adsorptive removal organic dyes from aqueous medium. nanotubes deposited on able to remove Reactive Black 5 dye while adsorption analogous globules was marginal. For that reason, macroporous open‐cell embedded five anionic and cationic dyes. adsorbed efficiently in contrast ones. This can be explained by electrostatic interaction polycation....
Abstract To minimize non‐specific protein adsorption on macroporous poly(glycidyl methacrylate) and poly(2‐hydroxyethyl microspheres containing amino and/or carboxyl groups, the are coated with α,ω‐bis‐carboxy poly(ethylene glycol) amino‐terminated glycol‐ co ‐propylene or α‐methoxy‐ω‐amino glycol). Adsorption of bovine serum albumin (BSA), γ‐globulin, 125 I‐BSA, pepsin, chymotrypsin neat PEGylated is determined by UV–VIS spectroscopy supernatants eluates measurement radioactivity in an...
Polypyrrole globules, nanofibers and nanotubes were activated by their carbonization at 650 °C in the 3:1 mass excess of molten potassium hydroxide argon. They have been compared with parent polypyrroles analogous samples obtained absence hydroxide. The yields after activation, 12–18 wt%, lower to carbonization, which exceeded 50 wt%. changes molecular structure are discussed on basis FTIR Raman spectra. One-dimensional morphologies, especially nanotubes, superior globules most respects....
Abstract Amphiphilic polymer networks consisting of hydrophilic poly(2‐hydroxyethyl methacrylate) (PHEMA) and hydrophobic polyisobutylene (PIB) chains were synthesized from a cationic copolymer isobutylene (IB) 3‐isopropenyl‐α,α‐dimethylbenzyl isocyanate (IDI) prepared at −50 °C in dichloromethane conjunction with SnCl 4 . The groups this random copolymer, PIB(NCO) n , subsequently transformed situ to methacrylate (MA) the dibutyltin dilaurate‐catalyzed reaction 2‐hydroxyethyl (HEMA) 30 °C....
Abstract Nitroxide-terminated 4VP AN copolymers have been synthesized at 125 o C using an alkoxyamine (MAMA-SG1) as a unimolecular initiator. Their compositions were compared with those published for the conventional radical 4VP-AN copolymerization. To verify initiation potential of containing nitroxyl end groups, they employed in chain extension styrene (S). Both prepared statistic copolymer macroinitiators and related diblock copolymers, poly(4VP- co -AN) -AN)- block -poly(S),...
Silanization of macroporous glass microfiber filters with (3-aminopropyl)triethoxysilane (APTES) and subsequent binding [2-(3,4-epoxycyclohexyl)ethyl]heptaisobutyloctasilsesquioxane (E-POSS) to the amine-terminated surface microfibers was studied. Prior silanization, minute quantities concentrated aqueous solutions hydrochloric acid or ammonia were adsorbed in while attachment E-POSS molecules APTES overlay not specially catalyzed. Analysis DRIFT, XPS, 13C CP/MAS NMR spectra has shown that...