In:
Key Engineering Materials, Trans Tech Publications, Ltd., Vol. 342-343 ( 2007-7), p. 749-752
Kurzfassung:
Characterization of an hyaluronic acid (HA)-poly(ethylene oxide) (PEO) hydrogel was
performed by changing the number of side arms in a PEO molecule. Verification of grafting chemistry and mechanical strength, as well as swelling behaviors and surface morphologies of the
HA-PEO hydrogels were analyzed by employing different x-linking molecular weights (MW) of PEO ranging from 1.7 to 5.0 kDa at a fixed low MW HA in the hydrogel network. Methacrylation
to the HA successfully obtained via Michael type reaction between the methacrylate arm groups in HA and the thiol end groups in PEO was observed by XPS. Hydrogel formation was markedly
dependent upon the numbers of thiol groups in the PEO molecule. Furthermore the lower MW PEO-based HA hydrogel demonstrated stronger mechanical properties but lower water absorption
and the smaller pore sizes on its surface and cross section.
Materialart:
Online-Ressource
ISSN:
1662-9795
DOI:
10.4028/www.scientific.net/KEM.342-343
DOI:
10.4028/www.scientific.net/KEM.342-343.749
Sprache:
Unbekannt
Verlag:
Trans Tech Publications, Ltd.
Publikationsdatum:
2007
ZDB Id:
2073306-9