A5036974593- biodegradable polymer synthesis and properties
- Advanced Polymer Synthesis and Characterization
- Carbon dioxide utilization in catalysis
- Polymer composites and self-healing
- Polymer Surface Interaction Studies
- Building materials and conservation
- Polydiacetylene-based materials and applications
- Polyoxometalates: Synthesis and Applications
- Cultural Heritage Materials Analysis
- Supramolecular Self-Assembly in Materials
- Graphene and Nanomaterials Applications
- Chemical Synthesis and Analysis
- Recycling and Waste Management Techniques
- Antimicrobial agents and applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced Chemical Sensor Technologies
- Rheology and Fluid Dynamics Studies
- Phase Equilibria and Thermodynamics
- Bone Tissue Engineering Materials
- Adsorption, diffusion, and thermodynamic properties of materials
- Aerogels and thermal insulation
- Organoboron and organosilicon chemistry
- Electrospun Nanofibers in Biomedical Applications
- Polymer Science and PVC
University of Florence
2015-2025
Friedrich Schiller University Jena
2017-2021
Institute of Macromolecular Chemistry
2020
We highlight here current trends of “green” materials for Cultural Heritage, and we introduce a new methodology to determine macromolecule's log P , applying it the development smart organogels Heritage conservation.
Acetic acid, a common pollutant present in museums and art galleries, can irreversibly damage works of art. Herein, sustainable scalable synthesis zinc oxide-castor oil polyurethane hybrids (ZnO/COPs), to be used as acetic acid removers the preventive conservation Cultural Heritage, is reported.The adsorption capacities ZnO/COPs were studied saturated atmosphere, at low gas concentration, inside wooden crate (naturally emitting acid) representative those storage deposits collections.Upon...
Epoxidized castor oil in polyurethanes preparation opens for a new class of “green” and sustainable poly(urethanes- co -oxazolidiones) organogels with enhanced mechanical thermal properties.
The remedial conservation of cultural heritage requires advanced functional materials that span from soft matter to nanostructured formulations, whose study is relevant different fields, ranging cosmetics and detergency tissue engineering. In the vast landscape innovative developed counteract artwork degradation, gels have emerged as ideal candidates for cleaning delicate complex surfaces. More specifically, twin-chain networks (TCNs), i.e., sponge-like hydrogels obtained through spontaneous...
Abstract Soft matrices with tuned properties are part of the vast landscape innovative materials for restoration works art. “Twin chain” polymer networks (TC‐PNs) based on polyvinyl alcohol have proven unique as scaffolds Cultural Heritage cleaning. They enable optimum adaptability, adhesion, porosity, and connectivity at both micro‐ nano‐scale resulting in superior time/space‐controlled cleaning operations. In this work, TC‐PNs through a mild crosslinking poly(vinyl alcohol) (PVA)‐porogen...
Castor oil (CO) can react with isocyanate to form polyurethane organogels, whose hydrophobicity be regulated by functionalization "green" oligoesters of bio-dicarboxylic acids. Here, we elucidated the gelation mechanism induced gain control gels' mechanical properties and solvent confinement capacity. This useful in cleaning Cultural Heritage items, a socioeconomically important application, other scientific/technological sectors. During gelation, aggregates compatibility CO is oligoesters'...
Abstract In a two‐step synthesis, five different alkyl‐substituted morpholine‐2,5‐dione monomers were synthesized from the natural amino acids glycine, alanine, valine, leucine, and isoleucine. The heterocyclic compounds crystallize in boat‐like conformation are polymerized via 1,5,7‐triazabicyclo[4.4.0]dec‐5‐ene (TBD)‐catalyzed ring‐opening polymerization (ROP) tetrahydrofuran. Well‐defined polymers could be obtained based on isoleucine at feed ratio of M/I/TBD = 100/1/0.5. Kinetic studies...
To explore the relationship between thermal properties of a polymer and biological performance resulting nanoparticle, all other parameters, including hydrophobicity, should be kept constant. For this purpose, gradient block copolyester were tailor-made via triazabicyclodecene catalyzed ring-opening copolymerization δ-valerolactone (δVL) δ-decalactone (δDL) to match hydrophobicity poly(ε-caprolactone) (PεCL). The degree crystallinity semicrystalline materials was significantly reduced due...
Commercially available strontium isopropoxide represents a suitable catalyst/initiator for the ring-opening polymerization (ROP) of lactide (LA), ε-caprolactone, δ-valerolactone, δ-caprolactone, and δ-decalactone. Well-defined polyesters are accessible via solution in toluene with [LA]:[Sr] ratio 100:1 at room temperature or without addition dodecanol as coinitiator. Kinetic studies detailed analysis by means matrix-assisted laser desorption ionization mass spectrometry reveal...
Seven polycaprolactones (PCL) with constant hydrophobicity but a varying degree of crystallinity prepared from the constitutional isomers ε-caprolactone (εCL) and δ-caprolactone (δCL) were utilized to formulate nanoparticles (NPs). The aim was investigate effect bulk polymers on enzymatic degradation particles. Furthermore, their efficiency encapsulate hydrophobic anti-inflammatory drug BRP-187 final in vitro performance resulting NPs evaluated. Initially, high-throughput nanoprecipitation...
The novel lactide isomer 3-ethyl-1,4-dioxane-2,5-dione (3-ethylglycolide, EtGly) represented the basis for development of polyesters varying crystallinity.
To obtain a set of polycaprolactones (PCL) with varying crystallinity, the triazabicyclodecene-catalyzed copolymerization two constitutional isomers ε-caprolactone (εCL) and δ-caprolactone (δCL) was carried out at room temperature in toluene. Variation feed fraction εCL from 50% to 80% detailed kinetic studies accompanied by application terminal as well nonterminal models suggested formation random copolymers. Differential scanning calorimetry wide-angle X-ray scattering investigations...
Hypothesis Poly (vinyl alcohol) (PVA) cryogels can be functionalized with n-Halamines to confer biocidal features useful for their application as wound-dressing tools. Their efficacy boosted by stably embedding a polymeric bacterial food source (e.g., starch) in the gel matrix. The bioavailability of lures bacteria inside network via chemotactic mechanisms, promoting contact functionalities and consequent inactivation. Experiments synthesis novel hydantoin-functionalized PVA (H-PVA-hyd) is...
Self-assembly of polyesters like PlLA and PdLA into stereocomplexes (SCs) is an interesting approach to tailor physical properties polymeric nanoparticles without affecting their hydrophilicity. Here, we use the stereocomplexation P(lLA-stat-EtGly) P(dLA-stat-EtGly) (EtGly: 3-ethylglycolide) tune melting temperature (Tm) degree crystallinity (wc) bulk polymer. Using time-dependent blending experiments characterization techniques, such as dynamic light scattering, wide-angle X-ray...
Detailed kinetic studies during the cationic ring-opening polymerization (CROP) of 2-ethyl-2-oxazoline (EtOx) are conducted using four bifunctional bromo-type initiators in N,N-dimethylformamide (DMF) at 140 °C. Serving as models to quantify chain transfer monomer occurring CROP initiated by monofunctional initiators, size exclusion chromatography (SEC) resolves a second molar mass distribution with lower initial [monomer] [initiation site] ratios ([M]0 /[I]0 ) 25, while resolution is...
Smart nano-carriers such as micelles, vesicles or nanoparticles constructed from amphiphilic polymers promise a new generation of drug delivery systems featuring localized and controlled release.
Front Cover: In article number 1900306, Ulrich S. Schubert and co-workers show that Sr(OiPr)2 is a highly active catalyst/initiator for the ring-opening polymerization of lactide various lactones, producing polyesters with excellent end-group fidelity. The catalyst promising applications in implant production because strontium beneficial bone regeneration.