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  1. AU="Minei, Pierpaolo"
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  1. Article ; Online: Polyketone-Based Anion-Exchange Membranes for Alkaline Water Electrolysis.

    Racchi, Ottavia / Baldassari, Rebecca / Araya-Hermosilla, Esteban / Mattoli, Virgilio / Minei, Pierpaolo / Pozio, Alfonso / Pucci, Andrea

    Polymers

    2023  Volume 15, Issue 9

    Abstract: Anion-exchange membranes (AEMs) are involved in a wide range of applications, including fuel cells and water electrolysis. A straightforward method for the preparation of efficient AEMs consists of polymer functionalization with robust anion-exchange ... ...

    Abstract Anion-exchange membranes (AEMs) are involved in a wide range of applications, including fuel cells and water electrolysis. A straightforward method for the preparation of efficient AEMs consists of polymer functionalization with robust anion-exchange sites. In this work, an aliphatic polyketone was functionalized with 1-(3-aminopropyl)imidazole through the Paal-Knorr reaction, with a carbonyl (C
    Language English
    Publishing date 2023-04-25
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2527146-5
    ISSN 2073-4360 ; 2073-4360
    ISSN (online) 2073-4360
    ISSN 2073-4360
    DOI 10.3390/polym15092027
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Fluorescent Polystyrene Films for the Detection of Volatile Organic Compounds Using the Twisted Intramolecular Charge Transfer Mechanism.

    Borelli, Mirko / Iasilli, Giuseppe / Minei, Pierpaolo / Pucci, Andrea

    Molecules (Basel, Switzerland)

    2017  Volume 22, Issue 8

    Abstract: Thin films of styrene copolymers containing fluorescent molecular rotors were demonstrated to be strongly sensitive to volatile organic compounds (VOCs). Styrene copolymers of 2-[4-vinyl(1,1'-biphenyl)-4'-yl]-cyanovinyljulolidine (JCBF) were prepared ... ...

    Abstract Thin films of styrene copolymers containing fluorescent molecular rotors were demonstrated to be strongly sensitive to volatile organic compounds (VOCs). Styrene copolymers of 2-[4-vinyl(1,1'-biphenyl)-4'-yl]-cyanovinyljulolidine (JCBF) were prepared with different P(STY-
    MeSH term(s) Biosensing Techniques ; Fluorescence ; Fluorescent Dyes ; Molecular Structure ; Polymers ; Polystyrenes/chemistry ; Solutions ; Spectrometry, Fluorescence ; Spectroscopy, Fourier Transform Infrared ; Volatile Organic Compounds/analysis
    Chemical Substances Fluorescent Dyes ; Polymers ; Polystyrenes ; Solutions ; Volatile Organic Compounds
    Language English
    Publishing date 2017-08-06
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules22081306
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

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  3. Article: Vapochromic features of new luminogens based on julolidine-containing styrene copolymers.

    Iasilli, Giuseppe / Martini, Fabio / Minei, Pierpaolo / Ruggeri, Giacomo / Pucci, Andrea

    Faraday discussions

    2016  Volume 196, Page(s) 113–129

    Abstract: We report on vapochromic films suitable for detecting volatile organic compounds (VOCs), based on new polystyrene copolymers containing julolidine fluorescent molecular rotors (JCAEM). Poly(styrene-co-hydroxyethylmethacrylate) copolymers functionalized ... ...

    Abstract We report on vapochromic films suitable for detecting volatile organic compounds (VOCs), based on new polystyrene copolymers containing julolidine fluorescent molecular rotors (JCAEM). Poly(styrene-co-hydroxyethylmethacrylate) copolymers functionalized with cyanovinyl-julolidine moieties of different compositions were prepared, (P(STY-co-JCAEM)(m) with m = 0.06-0.61). The sensing performance of the spin-coated copolymer films demonstrated significant vapochromism when exposed to VOCs characterized by high vapour pressure and a favourable interaction with the polymer matrix, such as Et
    Language English
    Publishing date 2016-11-25
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1359-6640
    ISSN 1359-6640
    DOI 10.1039/c6fd00151c
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Imidazole-Fused Enediynes by Selective C5–C4 Alkynylations of 4,5-Dibromoimidazoles

    Lessi, Marco / Panattoni, Alessandro / Guglielmero, Luca / Minei, Pierpaolo / Bellina, Fabio

    Synthesis

    2018  Volume 51, Issue 04, Page(s) 933–943

    Abstract: An efficient synthesis of symmetrical 1,2-disubstituted 4,5-dialkynylimidazoles by Sonogashira alkynylation of the corresponding 4,5-dibromo derivatives was developed. Moreover, through a careful tuning of the palladium ligand, unsymmetrical 1,2- ... ...

    Abstract An efficient synthesis of symmetrical 1,2-disubstituted 4,5-dialkynylimidazoles by Sonogashira alkynylation of the corresponding 4,5-dibromo derivatives was developed. Moreover, through a careful tuning of the palladium ligand, unsymmetrical 1,2-disusbtituted 4,5-dialkynylimidazoles were also prepared through a regioselective C5 alkynylation of 4,5-dibromoimidazoles, followed by a second alkynylation involving the 4-bromo derivatives so obtained. This interesting class of imidazole-fused enediynes is also able to give thermal Bergman cycloaromatization (BC), as proved by DSC experiments.
    Keywords imidazoles ; Sonogashira reaction ; regioselectivity ; enediynes ; Bergman cyclization ; palladium ; copper ; cross-coupling
    Language English
    Publishing date 2018-10-30
    Publisher © Georg Thieme Verlag
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 2033062-5
    ISSN 1437-210X ; 0039-7881
    ISSN (online) 1437-210X
    ISSN 0039-7881
    DOI 10.1055/s-0037-1610666
    Database Thieme publisher's database

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  5. Article ; Online: Aggregation Effects on Pigment Coatings: Pigment Red 179 as a Case Study.

    Muniz-Miranda, Francesco / Minei, Pierpaolo / Contiero, Luca / Labat, Frédéric / Ciofini, Ilaria / Adamo, Carlo / Bellina, Fabio / Pucci, Andrea

    ACS omega

    2019  Volume 4, Issue 23, Page(s) 20315–20323

    Abstract: Here, we have studied, with a combined experimental and computational approach, the effect of the crystal environment and aggregation on the electronic properties of Pigment Red 179, which affect both its color and optical energy gap. Spectra acquired in ...

    Abstract Here, we have studied, with a combined experimental and computational approach, the effect of the crystal environment and aggregation on the electronic properties of Pigment Red 179, which affect both its color and optical energy gap. Spectra acquired in the near-infrared and visible range of energies suggest that this molecule is indeed a "cool" dye, which can be employed as a red pigment that provides effective color coverage to different substrates without contributing to their heating during light irradiation. Spectra acquired on different polymer mixtures at different pigment concentrations (i.e., 2.5-10 wt %) suggest that absorption features depend on chromophoric arrangements promoted by the strong intermolecular π-π interactions. Calculations, performed at the time-dependent density functional theory level, allowed to both attribute the nature of the electronic transitions causing the observed spectra involved and understand the effect of the environment. Indeed, the visible spectra of the pigment is dominated by two localized transitions, with negligible charge transfer for both a dye monomer and dimer either in vacuum or acetonitrile solution. Instead, models including the crystal environment of the pigment show the presence of a high-wavelength S
    Language English
    Publishing date 2019-11-18
    Publishing country United States
    Document type Journal Article
    ISSN 2470-1343
    ISSN (online) 2470-1343
    DOI 10.1021/acsomega.9b02819
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Vapochromic Behaviour of Polycarbonate Films Doped with a Luminescent Molecular Rotor.

    Minei, Pierpaolo / Ahmad, Muzaffer / Barone, Vincenzo / Brancato, Giuseppe / Passaglia, Elisa / Bottari, Giovanni / Pucci, Andrea

    Polymers for advanced technologies

    2017  Volume 27, Issue 4, Page(s) 429–435

    Abstract: We report on vapochromic films suitable for detecting volatile organic compounds (VOCs), based on polycarbonate (PC) doped with 4-(triphenylamino)phthalonitrile ( ...

    Abstract We report on vapochromic films suitable for detecting volatile organic compounds (VOCs), based on polycarbonate (PC) doped with 4-(triphenylamino)phthalonitrile (
    Language English
    Publishing date 2017-09-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 1481102-9
    ISSN 1099-1581 ; 1042-7147
    ISSN (online) 1099-1581
    ISSN 1042-7147
    DOI 10.1002/pat.3688
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  7. Article ; Online: Mechanochromic LLDPE Films Doped with NIR Reflective Paliogen Black.

    Micheletti, Cosimo / Minei, Pierpaolo / Carlotti, Marco / Mattoli, Virgilio / Muniz-Miranda, Francesco / Perfetto, Anna / Ciofini, Ilaria / Adamo, Carlo / Ruggeri, Giacomo / Pucci, Andrea

    Macromolecular rapid communications

    2020  Volume 42, Issue 1, Page(s) e2000426

    Abstract: The perylene bisimide derivative Paliogen Black (P-black) is proposed as a new chromogenic probe that shows visible (vis) and near-infrared (NIR) responses after mechanical solicitations of host linear low-density polyethylene (LLDPE) films. P-black is ... ...

    Abstract The perylene bisimide derivative Paliogen Black (P-black) is proposed as a new chromogenic probe that shows visible (vis) and near-infrared (NIR) responses after mechanical solicitations of host linear low-density polyethylene (LLDPE) films. P-black is reported to display strong absorption in the vis spectrum and unusual reflective and cooling features in the NIR region. Uniaxial deformation of the 2.5, 5, and 10 wt% P-black/LLDPE films yields a dichroic absorption under polarized light with color variations attributed by the computational analysis to the distinct anisotropic behavior of the transition dipole moments of P-black chromophores. When LLDPE films are deformed, P-black aggregates reduce their size from ≈30-40 µm to ≈5-10 µm that, in turn, causes reflectivity losses of about 30-40% at the maximum elongation. This gives rise to warming of 5-6 °C of the locally oriented film placed in contact with a black substrate under the illumination with an IR lamp for 5 s. These features combined with the high sensitivity of the vis-NIR response toward mechanical solicitations render P-black as a new solution to detect uniaxial deformations of plastic films through both optical and thermal outputs.
    MeSH term(s) Plastics ; Polyethylene
    Chemical Substances Plastics ; Polyethylene (9002-88-4)
    Language English
    Publishing date 2020-10-21
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1475027-2
    ISSN 1521-3927 ; 1022-1336
    ISSN (online) 1521-3927
    ISSN 1022-1336
    DOI 10.1002/marc.202000426
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Cost-effective solar concentrators based on red fluorescent Zn(ii)–salicylaldiminato complex

    Minei, Pierpaolo / Fanizza, Elisabetta / Rodríguez, Antonio M / Muñoz-García, Ana B / Cimino, Paola / Pavone, Michele / Pucci, Andrea

    RSC advances. 2016 Feb. 11, v. 6, no. 21

    2016  

    Abstract: Sunlight concentration is a promising path to cost-effective photovoltaic (PV) technologies. Compared to standard concentrators based on geometrical optics, luminescent solar concentrators (LSCs) appear to be viable and convenient alternatives because ... ...

    Abstract Sunlight concentration is a promising path to cost-effective photovoltaic (PV) technologies. Compared to standard concentrators based on geometrical optics, luminescent solar concentrators (LSCs) appear to be viable and convenient alternatives because sunlight concentration to PV occurs with diffuse light and there is no need for sun tracking or cooling apparatuses. In this study, we report on the optical efficiencies of luminescent solar concentrators (LSCs) based on poly(methyl methacrylate) (PMMA) thin films doped with a red-emitting zinc(ii) complex of the D–A–D type ligand N,N′-bis(2-hydroxy-1-naphthylidene)-diaminomaleonitrile (ZnL). ZnL is attractive for use in LSC owing to its easy and cheap synthesis. ZnL in PMMA shows an emission band at 624 nm, a Stokes shift of 34 nm and an average QY of 23%, data comparable to those recorded in solution and efficiently predicted by DFT calculations. A study of ZnL/PMMA LSC yields optical efficiencies of 7%, which is comparable to those based on the near unity QY fluorophores such as Lumogen Red. These performances were attributed to the higher emission red-shift and larger Stokes shift of ZnL that prevent the loss of efficiencies due to self-absorption and possibly circumvent its lower QY.
    Keywords cost effectiveness ; fluorescence ; fluorescent dyes ; ligands ; polymethylmethacrylate ; solar collectors ; solar radiation ; zinc
    Language English
    Dates of publication 2016-0211
    Size p. 17474-17482.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ISSN 2046-2069
    DOI 10.1039/c5ra23049g
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Tuning of dye optical properties by environmental effects: a QM/MM and experimental study.

    Del Frate, Gianluca / Bellina, Fabio / Mancini, Giordano / Marianetti, Giulia / Minei, Pierpaolo / Pucci, Andrea / Barone, Vincenzo

    Physical chemistry chemical physics : PCCP

    2016  Volume 18, Issue 14, Page(s) 9724–9733

    Abstract: The present work is aimed at a deeper investigation of two recently synthesized heteroaromatic fluorophores by means of a computational multilayer approach, integrating quantum mechanics (QM) and molecular mechanics (MM). In particular, dispersion of the ...

    Abstract The present work is aimed at a deeper investigation of two recently synthesized heteroaromatic fluorophores by means of a computational multilayer approach, integrating quantum mechanics (QM) and molecular mechanics (MM). In particular, dispersion of the title dyes in a polymer matrix is studied in connection with potential applications as photoactive species in luminescent solar concentrators (LSCs). Molecular dynamics simulations, based on accurate QM-derived force fields, reveal increased stiffness of these organic dyes when going from CHCl3 solution to the polymer matrix. QM/MM computations of UV spectra for snapshots extracted from MD simulations show that this different flexibility permits explaining the different spectral shapes obtained experimentally for the two different environments. Moreover, the general spectroscopic trends are reproduced well by static computations employing a polarizable continuum description of environmental effects.
    Language English
    Publishing date 2016-03-22
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1476244-4
    ISSN 1463-9084 ; 1463-9076
    ISSN (online) 1463-9084
    ISSN 1463-9076
    DOI 10.1039/c6cp00841k
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Light-Responsive Polystyrene Films Doped with Tailored Heteroaromatic-Based Fluorophores.

    Minei, Pierpaolo / Battisti, Antonella / Barondi, Simone / Lessi, Marco / Bellina, Fabio / Ruggeri, Giacomo / Pucci, Andrea

    ACS macro letters

    2013  Volume 2, Issue 4, Page(s) 317–321

    Abstract: We describe a simple but effective strategy for imparting light-responsive peculiarity to polystyrene films. A pH-sensitive fluorescent dye having the electron-poor pyridine nucleus as a key structural feature was synthesized and dispersed at low ... ...

    Abstract We describe a simple but effective strategy for imparting light-responsive peculiarity to polystyrene films. A pH-sensitive fluorescent dye having the electron-poor pyridine nucleus as a key structural feature was synthesized and dispersed at low loadings (0.2-0.5 wt %) in a PS matrix. Once light irradiation in the near-UV range was sent to PS/dye films, PS photooxidation likely occurred at the film surface with the formation of carboxylic compounds. These species locally promoted dye protonation, thus, yielding a clear change of the film emission from blue to green. This study opens the door to a wide range of light-responsive materials from easily accessible polymers, enabling the use of UV light as an effective trigger for smart materials and devices.
    Language English
    Publishing date 2013-04-02
    Publishing country United States
    Document type Journal Article
    ISSN 2161-1653
    ISSN (online) 2161-1653
    DOI 10.1021/mz400103s
    Database MEDical Literature Analysis and Retrieval System OnLINE

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