Giovedì 9 maggio 2024 - Ore 15:00 - Aula Magna
Prof. Renaud Nicolaÿ
Molecular, Macromolecular Chemistry and Materials (C3M), UMR 7617, ESPCI Paris, PSL University, CNRS
  Seminario  

Vitrimers are chemically crosslinked networks that can rearrange their topology without decreasing their crosslinking density thanks to exchangeable links present in the network. As a result, vitrimers can be potentially reshaped and recycled at will, while displaying the superior properties of crosslinked polymers at service temperature. Very promising materials to create a circular economy of plastics and polymeric materials, vitrimers still display limitations that impact their transition towards industry, such as high viscosity even at elevated temperatures, due to the Arrhenian temperature dependence of the melt viscosity, or moderate creep resistance at working temperatures in the case of low Tg materials. Although many strategies have been reported to address these issues, it remains challenging to overcome a key trade-off between improving the processability or the mechanical performance of vitrimers. In this lecture, new strategies based on phase separation and reactive processing will be presented to jointly improve the processability and the mechanical performance of vitrimers relying on dioxaborolane metathesis.

Giovedì 9 maggio 2024 - Ore 14:30 – Aula 20
Thantip Roongcharoen, Doctoral School in Chemistry and Material Science DCCI-UNIPI
  Discussione Tesi DSCM  

Modeling Hydrogen Production via Aqueous Phase and Steam Reforming Catalysis
Supervisori: Dr. Alessandro Fortunelli Prof. Claudio Amovilli

Venerdì 10 maggio 2024 - Ore 16:00 - Aula Magna
Dott. Giuseppe Alonci, UB-Care Italy
  Seminario  

L'ex-studente del DCCI, Dott. Giuseppe Alonci, presenterà il suo ultimo Libro Divulgativo "La Chimica dell'Universo" a spasso nel cosmo tra molecole e pianeti.

Lunedì 13 maggio 2024 - Ore 14:30 - Aula 22
Prof. Denis Jacquemin, Université de Nantes
  Seminario  

Fluorescence is a radiative de-excitation process that competes with many other nonradiative pathways. Optimizing the fluorescence efficiency, that is, maximizing its quantum yield (ϕ_fl), remains a major experimental target, especially for fluorophores emitting in the red region. In this context, obtaining accurate theoretical estimates of ϕ_fl is highly desirable, but remains challenging irrespective of the selected computational strategy. In this seminar, I will discuss some benchmarks in the field, and next illustrate, for several practical examples performed in close collaboration with experimental groups, successes and failures in the calculation of ϕ_fl of organic dyes using a static approach. In this approach, one uses the so-called Thermal Vibration Correlation Formalism of the Shuai’ group, to estimate both the radiative (k_r) and internal conversion (k_ic) rates in the framework of Fermi’s golden rule, whereas other de-excitation pathways such as the inter-system crossing (ISC) or twisted intramolecular charge transfer (TICT) have to be evaluated separately. Such computational strategy is becoming increasingly popular, and a few advices will be given at the end of the talk for newbies.

Martedì 28 maggio 2024 - Ore 15:00 – Aula 23
Ester Giorgi, Doctoral School in Chemistry and Material Science DCCI-UNIPI
  Discussione Tesi DSCM  

Gold-based cytotoxic complexes for targeted anticancer treatments
Supervisori: Prof. Chiara Gabbiani e Dr. Alessandro Pratesi

Mercoledì 29 maggio 2024 - Ore 15:00 - Aula Magna
Leonardo Volpi, Direttore Generale di Volfoni Spa
Elisa Biondi, CFO-HR Manager di Volfoni Spa
  Seminario  

Il progetto Volfoni nasce dall’idea di tre eccellenze del settore Conciario, Volpi Concerie, Tannerie Haas e Campelli, di creare un nuovo polo conciario nel distretto di Santa Croce coniugando l’eccellenza produttiva con il rispetto per l’ambiente e per le persone. Il sito produttivo, in fase di costruzione, prevede l’implementazione di ogni sistema di recupero degli scarti di produzione fino ad arrivare all’installazione di un biodigestore, il primo nel settore conciario in Italia, che permetterà di riutilizzare i sottoprodotti di origine animale e trasformarli in Biogas. Grazie al Biogas e ai pannelli fotovoltaici, il sito produttivo sarà totalmente autonomo in termini di fabbisogno energetico. Questo, unitamente all’installazione di macchinari di ultima generazione e sistemi meccanizzati di spostamento dei pellami, permetterà di ottimizzare i processi industriali, migliorando la qualità e il benessere dei lavoratori. Il livello di innovazione introdotta ha dato vita al progetto M’Astri Nascenti Volfoni allo scopo di formare nuovi talenti. Questo progetto, in collaborazione con Po.Te.Co, prevede un corso di formazione retribuito della durata di un mese, al termine del quale, le risorse ritenute più idonee saranno inserite in azienda.

Giovedì 30 maggio 2024 - Ore 14:30 - Aula 24
Dott. Mykhaylo Potopnyk
Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
  Seminario  

N,O-chelated boron difluoride complexes have emerged as a significant class of compounds in the field of solid-state emissive materials. These complexes exhibit unique photophysical properties, making them promising candidates for applications in organic light-emitting diodes (OLEDs), sensors, and bioimaging. Their solid-state emissive properties are highly influenced by the molecular packing and intermolecular interactions in the crystalline phase, which can be optimized through careful molecular design. This presentation will briefly highlight a design and synthesis, photophysical properties, and potential applications of solid-state emissive N,O-chelated boron difluoride complexes, emphasizing their role in advancing materials science and optoelectronic technologies.

Venerdì 7 giugno 2024 - Ore 9:30 – Aula 24
Tommaso Nacci, Doctoral School in Chemistry and Material Science DCCI-UNIPI
  Discussione Tesi DSCM  

Analytical investigation of microparticles and microfibres released by agricultural mulch films and disposable wet wipes in the environment
Supervisori: Prof. Ilaria Degano e Prof. Francesca Modugno

Venerdì 7 giugno 2024 - Ore 9:30 – Aula 24
Andrea Roggi, Doctoral School in Chemistry and Material Science DCCI-UNIPI
  Discussione Tesi DSCM  

Advanced anion exchange membranes for water electrolysis
Supervisori: Prof. Elisa Martinelli

Martedì 11 giugno 2024 - Ore 16:30 – Aula 33
Alessio Lenzi, Doctoral School in Chemistry and Material Science DCCI-UNIPI
  Discussione Tesi DSCM  

Mass spectrometry-based multiomics approach to unveil heart failure pathophysiology
Supervisori: Dott. Tommaso Lomonaco e Prof. Fabio Di Francesco