Výsledky vyhledávání - "Raúl O. Garay"

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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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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Symmetric bent-shaped liquid crystal dimers showing transitions between optically uniaxial and biaxial smectic phases

Autor: Bertrand Donnio, Rosana S. Montani, Daniel Guillon, Claudia M. Hegguilustoy, Maria B. Darda, Raúl O. Garay, Benoît Heinrich

Publikováno v: Liquid Crystals. 42:1013-1023

We report the synthesis of a new homologous series of symmetric bent-shaped liquid crystal dimers bearing oxybiphenylcarboxylate mesogens linked by a pentamethylene spacer. The dimers were characterised by optical, thermal, X-ray diffraction and comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9badb62cc6961014d4a13bbaac815eb8
https://doi.org/10.1080/02678292.2015.1013515

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Highly luminescent anthracene sulfides. Synthesis, experimental and DFT study of their optical properties and interaction with electron deficient nitroaromatic compounds

Autor: Claudia M. Hegguilustoy, Raúl O. Garay, Maria Jose Romagnoli, Pablo Gabriel del Rosso, Rosana S. Montani

We report on the synthesis, thermal and photooxidative behavior and optical properties of a series alkyl and aryl sulfides with anthracene cores. All anthracene sulfides studied here were highly fluorescent. Their optical behavior was compared with t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f85da8533335fe12751e813f28adfe1
https://www.sciencedirect.com/science/article/pii/S1010603017307335

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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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Bent-shaped liquid crystal dimers. Influence of the direction of the oxybiphenylenecarboxyl groups on their mesomorphic behavior

Autor: Raúl O. Garay, Claudia M. Hegguilustoy, Rosana S. Montani, Maria B. Darda, Pablo Gabriel del Rosso

Publikováno v: ARKIVOC, Vol 2011, Iss 7, Pp 283-296 (2011)

In order to study what role the direction of the whole mesogenic groups play on their mesomorphic behavior we synthesized a series of bent-shaped dimers in which the mesogens differ in their relative orientation along the long molecular axis of the d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1764d3036a63e687e741c655f1a57e5
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0012.724

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