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Mechanical strengthened alginate/polyacrylamide hydrogel crosslinked by barium and ferric dual ions

Author:
Li, Gang, Zhang, Guoping, Sun, Rong, Wong, Ching-Ping
Source:
Journal of materials science 2017 v.52 no.14 pp. 8538-8545
ISSN:
0022-2461
Subject:
alginates, barium, cations, crosslinking, hydrogels, iron, methodology, polyacrylamide, tensile strength
Abstract:
Alginate/polyacrylamide hybrid hydrogel has attracted intense interests in different fields, but the low tensile strength and stiffness limit its comprehensive application. In this hydrogel system, the alginate–cation network plays an important role. Thus, based on the unique structure of alginate and its special interaction with different metal cations, we designed a new method of introducing barium and ferric ions together to crosslink the alginate sufficiently, creating a stronger alginate network. As a result, the prepared hybrid hydrogel exhibits enhanced strength and stiffness, which may serve as a new way to develop stronger hydrogel.
Agid:
5728058