Gel Formation in Aqueous Suspension Nitroxide-Mediated Radical Co-Polymerization of Styrene/Divinylbenzene

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Miguel A. D. Gonçalves (Author) Other; Virgínia D. Pinto (Author) Other; Rolando C. S. Dias (Author) Other; Mário Rui P. F. N. Costa (Author) FEUP; Leandro G. Aguiar (Author) Other; Reinaldo Giudici (Author) Other

Journal

Title: Macromolecular Reaction Engineering

Vol. 7 No. 3-4

Pages: 155-175

ISSN: 1862-832X

Publisher: Wiley-Blackwell

Indexing

ISI Proceedings

ISI Web of Knowledge - 13 Citations

Scopus - 7 Citations

Scientific classification

FOS: Engineering and technology > Chemical engineering

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

Authenticus ID: P-005-25Y

DOI: 10.1002/mren.201200058

Abstract (EN): 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 21