Utilize este identificador para referenciar este registo: http://hdl.handle.net/10198/8456
Título: Gel formation in aqueous suspension nitroxide-mediated radical co-polymerization of styrene/divinylbenzene
Autor: Gonçalves, Miguel
Pinto, Virgínia
Dias, Rolando
Costa, Mário
Aguiar, Leandro
Giudici, Reinaldo
Palavras-chave: Crosslinking
Gels
Light scattering
Living polymerizations
Polymerization kinetics
Data: 2013
Editora: WILEY-VCH
Citação: Gonçalves, Miguel; Pinto, Virgínia; Dias, Rolando; Costa, Mário; Aguiar, Leandro; Giudici, Reinaldo (2013) - Gel formation in aqueous suspension nitroxide-mediated radical co-polymerization of styrene/divinylbenzene. Macromolecular Reaction Engineering. ISSN 1862-8338. 7: 3-4, p.155–175
Resumo: Results from an experimental study concerning gel formation with nitroxide-mediated radical polymerization (NMRP) of styrene (S) and divinylbenzene (DVB) in aqueous suspension are reported. Influence of certain polymerization parameters on the dynamics of network formation was measured, namely the polymerization temperature and initial composition. Soluble polymer formed at different polymerization times was analyzed by size exclusion chromatography (SEC) with refractive index (RI) and multi angle laser light scattering (MALLS) detection. Concentration of pendant double bonds (PDB) was quantified by means of ICl titration and the morphology of the S/DVB particles was inspected by SEM. Incidence of cyclizations was assessed and the improvement of network homogeneity when using NMRP/FRP is discussed.
Peer review: yes
URI: http://hdl.handle.net/10198/8456
ISSN: 1862-8338
Versão do Editor: http://onlinelibrary.wiley.com/doi/10.1002/mren.201200058/abstract
Aparece nas colecções:DTQB - Artigos em Revistas Indexados ao ISI/Scopus

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