A5044645928- biodegradable polymer synthesis and properties
- Polymer crystallization and properties
- Polymer Nanocomposites and Properties
- Advanced Polymer Synthesis and Characterization
- Carbon dioxide utilization in catalysis
- Layered Double Hydroxides Synthesis and Applications
- Organometallic Complex Synthesis and Catalysis
- Silicone and Siloxane Chemistry
- Conducting polymers and applications
- Polymer Science and PVC
- Recycling and Waste Management Techniques
- 2D Materials and Applications
- Asymmetric Hydrogenation and Catalysis
- Polyoxometalates: Synthesis and Applications
- Synthesis and properties of polymers
- Fuel Cells and Related Materials
- MXene and MAX Phase Materials
- Polymer Nanocomposite Synthesis and Irradiation
- Fiber-reinforced polymer composites
- Photopolymerization techniques and applications
- Polymer composites and self-healing
- Microplastics and Plastic Pollution
- Synthetic Organic Chemistry Methods
- Tribology and Wear Analysis
- Building materials and conservation
Institute for the Chemistry of OrganoMetallic Compounds
2016-2025
National Research Council
2019-2025
Istituto di Scienza e Tecnologie dell'Informazione "Alessandro Faedo"
2009-2024
Institute for Chemical and Physical Processes
2019
University of Pisa
2000-2010
Industriale Chimica (Italy)
2000-2007
Scuola Normale Superiore
2004
The depletion of fossil fuels and environmental concerns have driven the development sustainable materials, including bio-based biodegradable plastics, as alternatives to conventional plastics. Although these plastics aid in waste management climate change mitigation, their vulnerability oxidative degradation impacts longevity, durability, performance. Natural antioxidants such tocopherols, flavonoids, tannins, extracted from plants or agri-food waste, present a alternative synthetic...
Abstract Polyolefins are today the most used thermoplastic materials thanks to high technology and sustainability of polymerization process, their excellent thermomechanical properties good environmental compatibility, including easy recycling. In last few decades much effort has been devoted worldwide extend applications polyolefins by conferring on them new through mixing blending with different materials. this latter context, nanocomposites have recently offered exciting possibilities....
Thermoplastic polymers like polyolefins, polyesters, polyamide, and styrene are the most representative commodity plastics thanks to their cost-efficient manufacturing processes, excellent thermomechanical properties good environmental compatibility, including easy recycling. In last few decades much effort has been devoted worldwide extend applications of such materials by conferring on them new through mixing blending with different additives. this latter context, nanocomposites have...
Black phosphorus (bP) has been recently investigated for next generation nanoelectronic multifunctional devices. However, the intrinsic instability of exfoliated bP (the nanoflakes) toward both moisture and air so far overshadowed its practical implementation. In order to contribute fill this gap, we report here preparation new hybrid polymer-based materials where nanoflakes (bPn) exhibit a significantly improved stability. The have prepared by different synthetic paths including: (i) mixing...
The ligand combination of semirigid 2,6-bis(imidazole-1-yl)pyridine (2,6-bip) and rigid benzenecarboxylate allow the isolation three new zinc coordination polymers. Hydrothermal synthesis between Zn(NO3)2·6H2O, 2,6-bip, terephthalic acid under basic condition affords [Zn(1,4-bdc)(2,6-bip)·2H2O]n (1) (1,4-bdc =1,4-benzenedicarboxylate), which shows an undulating 2D (4,4)-network with 2-fold interpenetration. Contrastingly, solvothermal identical starting materials in DMF, yields...
Isotactic polypropylene (iPP) gives very extensive degradation when treated with peroxides above its melting temperature in mechanical mixers or extruders. This undesired reaction is modestly affected by maleate molecules which on the contrary actively compete side reactions of macroradicals case ethylene polymers. In this work iPP was a Brabender mixer at 180 °C peroxide and different selected capable promptly reacting macroradical formed chain converting it into more stable free radical....
An efficient approach to the organic functionalization of multiwalled carbon nanotubes (MWCNTs) for production highly soluble/dispersible materials has been accomplished by a class reactive and thermally stable nitrones. Besides unprecedented solubility in aprotic polar solvents functionalized samples (up 10 mg f-MWCNTs per mL DMF), we have demonstrated, first time, that CNT nitrones preferentially occurs at defective sidewalls without any appreciable degradation their sp2 network. The role...
The effect of the compounding method on morphology and properties poly(lactic acid) (PLA)–hydrotalcite (HT) composites was studied. Moreover, influence two different kinds HT—organically modified (OM‐HT) unmodified (U‐HT)—and their concentration evaluated. were prepared using either a single screw extruder (SSE), counter rotating twin‐screw compounder (TSC) or corotating (TSE). materials characterized by scanning electron microscopy, gel permeation chromatography (GPC) analysis, mechanical...
Polyolefin-based materials are increasingly being used in many industrial applications for packaging, automotive and construction materials. The recent developments of research have been aimed at making these materials, often complex, mixtures, block copolymers, micro- nanocomposites with inorganic organic fillers, more efficient environmentally friendly (through recycling processes, the use bio-polyolefins). In this context, functionalized polyolefins, on one hand, play a fundamental role...
This article describes the development of a high power density Direct Formate Fuel Cell (DFFC) fed with potassium formate (KCOOH). The membrane electrode assembly (MEA) contains no platinum metal. cathode catalyst is FeCo/C combined commercial anion exchange (AEM). To enhance output and energy efficiency we have employed nanostructured Pd/C-CeO2 anode catalyst. activity for oxidation reaction (FOR) enhanced when compared to Pd/C same Pd loading. cell tests at 60 °C show peak almost 250 mW...
Olive pruning is waste from olive cultivation and generally disposed of through incineration. can, however, be salvaged by pyrolysis, which also produces an interesting carbon-based material known as biochar. Biochar has been proved a suitable filler improves the mechanical properties epoxy composites. Despite this, literature few studied focused on relationship between biochar thermal history it induces in related containing In this work, we report morphological analysis produced at...
Immobilizing natural antioxidant and biologically active molecules in layered double hydroxides (LDHs) is an excellent method to retain release these substances a controlled manner, as well protect them from thermal photochemical degradation. Herein, we describe the preparation of host-guest systems based on LDHs rosmarinic glycyrrhetinic acids, two obtained extraction herbs licorice root, respectively, with antioxidant, antimicrobial, anti-inflammatory properties. Intercalation between...
Abstract Combining oxidative plasma pre‐treatment of carbon fibers (CFs) with subsequent functionalization branched polyethyleneimine (b‐PEI) resulted in b‐PEI‐modified CFs. First, CFs were oxidized by treatment, dipped into a water solution b‐PEI, and finally heated to promote reactions between the amine functionalities b‐PEI carboxyl groups generated activation. By ajusting operational parameters low‐pressure oxygen concentration, reaction time, we could modulate content grafted b‐PEI. The...
Abstract The functionalisation of a low molecular weight, liquid 1,2‐polybutadiene (PBL) was performed by the addition either N ‐acetyl‐ L ‐cysteine or its methyl ester through thiol‐ene radical reaction. runs were carried out in 1,4‐dioxane solution and presence free initiator (2,2′‐azobisisobutyrronitrile, AIBN). initial feed ratio polymer / cysteine derivative varied, order to highlight occurrence side reactions understand their possible influence on process. 1 H NMR determination degree...
Interfacial and confinement effects on the evolution of cooperativity approaching glass transition have been studied in poly(propylenecoethylene) functionalized with diethylmaleate, polyethylene 1,4-cyclohexylenedimethylene terephthalate glycol their nanocomposites montmorillonite. A small increase structural dynamic cooperativity, a weak alteration temperature dependence characteristic relaxation frequency, no changes observed poly(propylenecoethylene)-based samples can be rationalized...
C1-symmetric [2,6-bis(imino)pyridyl]iron dichloride complexes can form on activation by MAO highly active catalysts for the one-pot transformation of ethylene into mixtures linear homopolymer and α-olefins with a Schulz−Flory distribution.
Low density polyethylene/layered double hydroxide (LDH) composites were prepared via melt compounding using different kinds of organo-LDHs and polyethylene-grafted maleic anhydride as the compatibilizer.The successfully by converting a commercial MgAl-carbonate LDH into MgAl-nitrate LDH, which was later modified anion exchange with linear branched sodium alkyl sulfates having chain lengths (n c = 6, 12 20).It observed that, depending on size surfactant chain, degrees polymer intercalation...