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Chitosan/Alginate Dialdehyde Multilayer Films with Modulated pH‐Responsiveness and Swelling
Author(s) -
Huang Junhao,
Moghaddam Saeed Zajforoushan,
Thormann Esben
Publication year - 2020
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201900499
Subject(s) - swelling , chitosan , polysaccharide , aldehyde , amine gas treating , layer (electronics) , polymer chemistry , chemical engineering , materials science , chemistry , composite material , organic chemistry , catalysis , engineering
Oxidation of alginate is a promising method that creates aldehyde groups, which can form stable cross‐links with amine groups on chitosan. In this work, it is shown that a systematic variation in the oxidation degree of alginate dialdehyde allows for effective tuning of the swelling capacity of chitosan/alginate dialdehyde multilayer films. Furthermore, it is demonstrated that the pH‐responsiveness of the multilayer films can be regulated by the choice of pH at which the layer‐by‐layer assembly is conducted. The combination of these two parameters allows for the designing polysaccharide multilayer films with a tunable degree of swelling and stimuli‐responsiveness.