Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks

Bibliographic Details
Main Author: Gonçalves, Miguel A.D.
Publication Date: 2009
Other Authors: Dias, Rolando, Costa, Mário Rui
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10198/1178
Summary: Prediction and Experimental Characterization of the Molecular Architecture of FRP and ATRP Synthesized Polyacrylate Networks
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spelling Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networksModelingCrosslinkingPrediction and Experimental Characterization of the Molecular Architecture of FRP and ATRP Synthesized Polyacrylate NetworksFollowing recent research works [1,2], this work reports additional experimental and modeling studies concerning the conventional (FRP) and atom transfer radical polymerization (ATRP) of acrylate/diacrylate monomers. In the framework of a recently developed general approach [3-5], kinetic models including crosslinking reactions and branching by chain transfer to polymer are discussed for FRP and ATRP polymerization systems. Besides MWD, the prediction of the z-average radius of gyration is shown to be possible for these non-linear polymers. A set of experiments was performed at 1 L scale in a batch reactor using n-butyl acrylate (BA) or methyl acrylate (MA) as monovinyl monomers and 1,4-Butanediol diacrylate (BDDA), 1,6-Hexanediol diacrylate (HDDA) or bisphenol A ethoxylate diacrylate (BEDA) as crosslinkers. In FRP experiments, AIBN was used as initiator and ATRP polymerizations were initiated by ethyl 2-bromopropionate (EbrP) and mediated by CuBr using PMDETA (N,N,N',N'',N''-pentamethyldiethylenetriamine) as ligant. Polymerizations were carried out in solution at T=60 °C at different dilutions (15 to 56% volumetric fraction of monomer) using toluene, anisole and DMF as solvents. Products formed at different polymerization times were analyzed by SEC/RI/MALLS yielding average MW, MWD, z-average radius of gyration and monomer conversion. Important differences in the molecular architecture of FRP and ATRP polyacrylate networks were identified and is shown that huge errors can result from the interpretation of chromatograms of these networks using linear calibrations. Comparison of experimental results with predictions put into evidence the important effect of intramolecular cyclizations at all dilutions, even with ATRP polymerizations.FCTECI - Engineering Conferences InternationalBiblioteca Digital do IPBGonçalves, Miguel A.D.Dias, RolandoCosta, Mário Rui2009-09-04T16:04:48Z20092009-01-01T00:00:00Zconference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10198/1178engGonçalves, Miguel; Dias, Rolando; Costa, Mário (2009). Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks. In 7th Polymer Reaction Engineering. Ontario, Canada.info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-02-25T11:54:37Zoai:bibliotecadigital.ipb.pt:10198/1178Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T11:15:56.768581Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks
title Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks
spellingShingle Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks
Gonçalves, Miguel A.D.
Modeling
Crosslinking
title_short Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks
title_full Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks
title_fullStr Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks
title_full_unstemmed Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks
title_sort Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks
author Gonçalves, Miguel A.D.
author_facet Gonçalves, Miguel A.D.
Dias, Rolando
Costa, Mário Rui
author_role author
author2 Dias, Rolando
Costa, Mário Rui
author2_role author
author
dc.contributor.none.fl_str_mv Biblioteca Digital do IPB
dc.contributor.author.fl_str_mv Gonçalves, Miguel A.D.
Dias, Rolando
Costa, Mário Rui
dc.subject.por.fl_str_mv Modeling
Crosslinking
topic Modeling
Crosslinking
description Prediction and Experimental Characterization of the Molecular Architecture of FRP and ATRP Synthesized Polyacrylate Networks
publishDate 2009
dc.date.none.fl_str_mv 2009-09-04T16:04:48Z
2009
2009-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10198/1178
url http://hdl.handle.net/10198/1178
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Gonçalves, Miguel; Dias, Rolando; Costa, Mário (2009). Prediction and experimental characterization of the molecular architecture of FRP and ATRP synthesized polyacrylate networks. In 7th Polymer Reaction Engineering. Ontario, Canada.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv ECI - Engineering Conferences International
publisher.none.fl_str_mv ECI - Engineering Conferences International
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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