Polymerization of p-nitrobenzyl acrylate under microwave irradiation and their optical properties

p-Nitrobenzyl acrylate was polymerized under microwave irradiation initiated by benzoyl peroxide. The effect of the reaction conditions on the conversion, average molecular weights and the polydispersity index (Mw/Mn) were investigated. The polymers were characterized by IR, ¹H and ¹³C-NMR spectrosc...

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Detalles Bibliográficos
Autores principales: Oberti, Tamara Gisela, Lavecchia, Martín José, Cortizo, María Cecilia
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Exactas
Química
p-nitrobenzyl acrylate
microwave polymerization
computational calculation
optical properties
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/164054
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-164054
record_format dspace
spelling I19-R120-10915-1640542024-03-21T04:07:16Z http://sedici.unlp.edu.ar/handle/10915/164054 Polymerization of p-nitrobenzyl acrylate under microwave irradiation and their optical properties Oberti, Tamara Gisela Lavecchia, Martín José Cortizo, María Cecilia 2011-11 2024-03-20T15:16:07Z en Ciencias Exactas Química p-nitrobenzyl acrylate microwave polymerization computational calculation optical properties p-Nitrobenzyl acrylate was polymerized under microwave irradiation initiated by benzoyl peroxide. The effect of the reaction conditions on the conversion, average molecular weights and the polydispersity index (Mw/Mn) were investigated. The polymers were characterized by IR, ¹H and ¹³C-NMR spectroscopies and molecular weights were analyzed with size exclusion chromatography (SEC). Optical properties in seven solvents were studied. The most outstanding characteristics of this monomer were slow kinetics of polymerization and low average molecular weight (Mw ~ 3000) as result of the chain transfer reaction to monomer, as it was demonstrated by experimental test and theoretical calculations. Solvatochromic effect of polymer solutions by changing the solvent polarity was quantitatively expressed by means of the linear solvation energy relationship using the empirical Kamlet-Taft solvents parameters set. The analyses demonstrated that the solute-solvent dipolar interactions were mainly responsible of the observed shift of νmax and attributed to the para-nitrobenzyl group of the monomer, which enhanced the optical properties of the polymer. Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas Centro de Química Inorgánica Articulo Articulo http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) application/pdf 1293-1299
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Química
p-nitrobenzyl acrylate
microwave polymerization
computational calculation
optical properties
spellingShingle Ciencias Exactas
Química
p-nitrobenzyl acrylate
microwave polymerization
computational calculation
optical properties
Oberti, Tamara Gisela
Lavecchia, Martín José
Cortizo, María Cecilia
Polymerization of p-nitrobenzyl acrylate under microwave irradiation and their optical properties
topic_facet Ciencias Exactas
Química
p-nitrobenzyl acrylate
microwave polymerization
computational calculation
optical properties
description p-Nitrobenzyl acrylate was polymerized under microwave irradiation initiated by benzoyl peroxide. The effect of the reaction conditions on the conversion, average molecular weights and the polydispersity index (Mw/Mn) were investigated. The polymers were characterized by IR, ¹H and ¹³C-NMR spectroscopies and molecular weights were analyzed with size exclusion chromatography (SEC). Optical properties in seven solvents were studied. The most outstanding characteristics of this monomer were slow kinetics of polymerization and low average molecular weight (Mw ~ 3000) as result of the chain transfer reaction to monomer, as it was demonstrated by experimental test and theoretical calculations. Solvatochromic effect of polymer solutions by changing the solvent polarity was quantitatively expressed by means of the linear solvation energy relationship using the empirical Kamlet-Taft solvents parameters set. The analyses demonstrated that the solute-solvent dipolar interactions were mainly responsible of the observed shift of νmax and attributed to the para-nitrobenzyl group of the monomer, which enhanced the optical properties of the polymer.
format Articulo
Articulo
author Oberti, Tamara Gisela
Lavecchia, Martín José
Cortizo, María Cecilia
author_facet Oberti, Tamara Gisela
Lavecchia, Martín José
Cortizo, María Cecilia
author_sort Oberti, Tamara Gisela
title Polymerization of p-nitrobenzyl acrylate under microwave irradiation and their optical properties
title_short Polymerization of p-nitrobenzyl acrylate under microwave irradiation and their optical properties
title_full Polymerization of p-nitrobenzyl acrylate under microwave irradiation and their optical properties
title_fullStr Polymerization of p-nitrobenzyl acrylate under microwave irradiation and their optical properties
title_full_unstemmed Polymerization of p-nitrobenzyl acrylate under microwave irradiation and their optical properties
title_sort polymerization of p-nitrobenzyl acrylate under microwave irradiation and their optical properties
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/164054
work_keys_str_mv AT obertitamaragisela polymerizationofpnitrobenzylacrylateundermicrowaveirradiationandtheiropticalproperties
AT lavecchiamartinjose polymerizationofpnitrobenzylacrylateundermicrowaveirradiationandtheiropticalproperties
AT cortizomariacecilia polymerizationofpnitrobenzylacrylateundermicrowaveirradiationandtheiropticalproperties
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