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Gel Permeation Chromatography, Dynamic Light Scattering and Viscometry Studies of NaEPSS Polyelectrolytes Obtained from Polystyrene Wastes
Author(s) -
Sułkowski Wiesław W.,
Wolińska Agnieszka,
Pentak Danuta,
Maslanka Slawomir,
Turanek Jaroslav,
Neca Jri,
Sułkowska Anna
Publication year - 2007
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200750149
Subject(s) - polyelectrolyte , gel permeation chromatography , dynamic light scattering , polystyrene , chemistry , chromatography , viscometer , aqueous solution , solvent , intrinsic viscosity , multiangle light scattering , polymer , molar mass distribution , permeation , sorption , chemical engineering , fractionation , light scattering , polymer chemistry , viscosity , materials science , organic chemistry , scattering , membrane , adsorption , biochemistry , physics , optics , nanoparticle , engineering , composite material
The determination of the physicochemical properties of polyelectrolytes in water solution has fundamental importance for the description of their possible application. Gel permeation chromatography (GPC), dynamic light scattering (DLS) and viscosimetry studies of the polyelectrolytes were performed for this goal. The polyelectrolytes were obtained from polystyrene waste. Waste polystyrene foam (EPS) as reference material was converted into polymeric flocculants (NaEPSS) in chemical reactions.1–3 Products with determined molecular weight and number of sulphonic group per monomer unit were divided into several fractions by fractional precipitation with 0.5 M aqueous NaOH as the solvent and 2‐propanol as the precipitant. Viscosity measurements of water solutions of obtained polyelectrolytes NaEPSS were performed and the results were used for the calculation of the viscosity average molecular weights. The obtained results were then compared with the data from GPC (gel permeation chromatography) measurements and DLS (dynamic light scattering) results. It was stated that the changes of the molecular weights for the fractions of the NaEPSS values may be the result of side reactions occurring during the sulphonation process and of the irregular course of the fractionation process.