Premium
The Influence of Halide‐Mediated Oxidation on Algae‐Born Adhesives
Author(s) -
Bitton Ronit,
Berglin Mattias,
Elwing Hans,
Colin Carole,
Delage Ludovic,
Potin Philippe,
BiancoPeled Havazelet
Publication year - 2007
Publication title -
macromolecular bioscience
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.924
H-Index - 105
eISSN - 1616-5195
pISSN - 1616-5187
DOI - 10.1002/mabi.200700099
Subject(s) - adhesive , iodide , chemistry , halide , bromide , polyphenol , adhesion , polymer chemistry , kinetics , algae , chemical engineering , organic chemistry , botany , antioxidant , physics , layer (electronics) , quantum mechanics , engineering , biology
Adhesive materials extracted from the brown algae Fucus Serratus were studied. These adhesives are composed of cross‐linked alginate and polyphenols oxidized in the presence of KI or KBr. All formulations were capable of adhering to a variety of surfaces, however the adhesion properties were influenced by the halide used. SAXS and TEM experiments revealed that oxidized polyphenols self‐assemble into chain‐like objects, irrespective of the oxidation conditions. Yet, slight differences in the aggregate size were detected. QCM‐D results showed that the kinetics of the oxidation was faster with iodide than with bromide. Moreover, oxidation with iodide generates stiffer networks, suggesting that the interaction between the alginate and the polyphenol could be the cause of the reduced adhesion.