Premium
Effectiveness test of alginate‐derived polymeric surfactants
Author(s) -
Kang HyunAh,
Jeon GyuJong,
Lee MooYeal,
Yang JiWon
Publication year - 2002
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.550
Subject(s) - azobenzene , adsorption , critical micelle concentration , pulmonary surfactant , cobalt , micelle , amination , surface tension , alkyl , dissolution , chemistry , materials science , nuclear chemistry , polymer chemistry , chemical engineering , organic chemistry , polymer , catalysis , aqueous solution , thermodynamics , biochemistry , physics , engineering
A series of alginate‐derived polymeric surfactants (APSs) with a linear alkyl group (C8, C12, C16) was synthesized by oxidation followed by reductive amination of 2,3‐dialdehydic alginate. The products were characterized by measuring IR spectra, NMR spectra, surface tension and critical micelle concentration (cmc). They were also tested for the solubilization of azobenzene and adsorption of heavy metal. In the case of 40% CHO‐C8 APSs, the lowest interfacial tension value (31.5 m Nm −1 ) was obtained at the cmc value of 1.35 g dm −3 . The dissolving capacity of 40% CHO‐C8 APS towards azobenzene was 27 times greater than that of alginate. The overall cobalt (Co 2+ ) removal efficiency by adsorption using APSs was high compared with that of sodium alginate at pH 3, 5 and 7. Equilibrium aspects of cobalt adsorption onto 10% CHO‐APSs were studied, and the results show that APSs had high equilibrium capacities for cobalt uptake, 115.5 mgg −1 . © 2002 Society of Chemical Industry