Zobrazeno 1 - 10 of 15 pro vyhledávání: '"Marcela Almassio"'
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Akademický článek
Polymerization Mechanism of α,α’-bis(Tetrahydrothiophenio)-β-xylene Dichloride
Autor: Raúl O. Garay, Marcela Almassio
Publikováno v: Molecules, Vol 5, Iss 3, Pp 596-597 (2000)
A experimental study was performed regarding the influence of the base nature and solvent on the reactive intermediate concentration in the base-promoted bissulfonium salts polymerization. Such polymerization reaction is part of a synthetic procedure
Externí odkaz: https://doaj.org/article/e216a4e9a3e444738864e67492424aaf
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2
Distyrylbenzene-based segmented conjugated polymers: Synthesis, thin film morphology and chemosensing of hydrophobic and hydrophilic nitroaromatics in aqueous media
Autor: Maria Jose Romagnoli, Pablo Gabriel del Rosso, Marcela Almassio, Ana Belén Schvval, Raúl O. Garay
Publikováno v: CIC Digital (CICBA)
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
Two new segmented conjugated polymers bearing distyrylbenzene chromophoric units and their model compounds were synthesized. The tendency of the model compounds to form H- and J-type aggregates in the amorphous matrix was greatly diminished by the tw
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a0cfe8320c8759552d50e65faa280fc
https://doi.org/10.1016/j.polymer.2017.02.069
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3
p-Oligophenylene-based polymeric fluorescent nanofilms. Synthesis, electrooptical characterization and application in aqueous phase nitroaromatic detection
Autor: Marcela Almassio, Ana Belén Schvval, Pablo Gabriel del Rosso, Raúl O. Garay
Publikováno v: Optical Materials. 112:110737
Model compounds and new polymeric materials bearing p-terphenylene and p-quaterphenylene units tethered by their para-positions were synthesized. PTF, with terphenylene groups tethered with C(CF3)2 groups, reached the higher polymerization degrees. A
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c873f568505d6eeba1a6e5c852fae46
https://doi.org/10.1016/j.optmat.2020.110737
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Fluorescent Amorphous Distyrylnaphthalene-Based Polymers: Synthesis, Characterization and Thin-Film Nanomolar Sensing of Nitroaromatics in Water
Autor: Rosana S. Montani, Maria Jose Romagnoli, Paolo G. Del Rosso, Raúl O. Garay, Ana Belén Schvval, Marcela Almassio
Publikováno v: Polymers
CIC Digital (CICBA)
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Volume 10
Issue 12
Polymers, Vol 10, Iss 12, p 1366 (2018)
Two new fluorescent segmented conjugated polymers with either 1,4- or 2,6-distyrylnaphthalene chromophores and their model compounds were synthesized and the chemosensing abilities of the polymeric thin films to detect nitroaromatics (NACs) in aqueou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d205a9717f83874a92e9f89bd308f167
http://europepmc.org/articles/PMC6401803
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Diphenylanthrylene and diphenylfluorene-based segmented conjugated polymer films as fluorescent chemosensors for nitroaromatics in aqueous solution
Autor: Maria Jose Romagnoli, Cesar A. Barbero, Pablo Gabriel del Rosso, Raúl O. Garay, Marcela Almassio
Publikováno v: Sensors and Actuators B: Chemical. 203:612-620
A new regularly segmented conjugated polymer with diphenylanthryl chromophores bearing oxyethylene side chains was synthesized. The amorphous polymer was solution-processable. The formation of aggregated species in solid phase was hindered by the ben
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75959d77411dc9176b2bc3769c8abb5a
https://doi.org/10.1016/j.snb.2014.07.032
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Photoactive thin films of terphenylene-based amorphous polymers. Synthesis, electrooptical properties, and role of photoquenching and inner filter effects in the chemosensing of nitroaromatics
Autor: Maria Jose Romagnoli, Marcela Almassio, Pablo Gabriel del Rosso, Raúl O. Garay, Ana Belén Schvval
Publikováno v: CIC Digital (CICBA)
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
New photoactive segmented conjugated polymers with terphenylene chromophores were synthesized, and the chemosensing abilities to detect nitroaromatics compounds (NACs) of the polymeric thin films were evaluated in aqueous media. The thin films are st
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7a2efc3709655348d21a872dbb8b613
https://doi.org/10.1016/j.jphotochem.2019.112016
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Nitroaromatic compounds sensing. Synthesis, photophysical characterization and fluorescence quenching of a new amorphous segmented conjugated polymer with diphenylfluorene chromophores
Autor: Pablo Gabriel del Rosso, Raúl O. Garay, Gerardo R. Palomar, Marcela Almassio
Publikováno v: Sensors and Actuators B: Chemical. 160:524-532
A new regularly segmented conjugated polymer bearing 2,7-diphenylfluorene chromophores tethered by isopropylidene connectors was synthesized by a relatively short synthetic route starting from easily available monomer synthons. Its photophysical prop
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::22047c87d6fe7c5174980a2d3dc04969
https://doi.org/10.1016/j.snb.2011.08.021
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Mild persubstitution of di- and tetrabrominated arenes with arylthiolate nucleophiles
Autor: Marcela Almassio, Raúl O. Garay, Pablo Gabriel del Rosso, Mattia Bruno
Publikováno v: Tetrahedron Letters. 51:6730-6733
A mild selective protocol was used to prepare tetrakis(2-chlorophenylthio)anthracene from tetrabromoanthracene and sodium 2-chlorobenzenethiolate avoiding the thiolate self-attack. The uncatalyzed nucleophilic substitution of a series of mono-, di-,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c490ca88ce157fe671876e3709b9123e
https://doi.org/10.1016/j.tetlet.2010.10.069
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9
Improved synthesis of bis(chloromethyl)arene monomers
Autor: Myrian N. Sarimbalis, Raúl O. Garay, Marcela Almassio
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
We report here on the experimental conditions for radical chlorination that provide improved yields of 2,5-bis(chloromethyl) pyridine and pyrazine, as well as on theoretical calculations which were performed in order to gain some insight regarding th
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57c93ea4eaf03c527d48a0a0c82ef249
https://doi.org/10.1163/1568555054460024
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10
Chemosensing of nitroaromatics with a new segmented conjugated quaterphenylene polymer
Autor: Marcela Almassio, Pablo Gabriel del Rosso, Raúl O. Garay
A new approach for introducing porosity in fluorescent polymer films to increase sensing performance is presented. A novel segmented conjugated polymer composed of p-quaterphenylene segments tethered by their meta positions along the polymer main cha
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4527e8cb132a09b50e5a2f1a57e287c
https://www.sciencedirect.com/science/article/pii/S0040403911011762
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