Synthesis and characterization of poly(vinyl alcohol)-graft-[poly(D,L-lactide)/poly(D,L- lactide-co-glycolide)] hydrogels (CROSBI ID 127579)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Vidović, Elvira ; Klee, Doris ; Höcker, Hartwig
engleski
Synthesis and characterization of poly(vinyl alcohol)-graft-[poly(D,L-lactide)/poly(D,L- lactide-co-glycolide)] hydrogels
Poly(D, L-lactide) and poly(D, L-lactide-co- glycolide) with various composition and with one methacrylate and one carboxylate end group were synthesized and grafted onto poly(vinyl alcohol) (PVA) via the carboxylate group. The graft copolymers were crosslinked via the methacrylate groups using a free radical initiator. The polymer networks were characterized by means of NMR and studied qualitatively by means of IR spectroscopy. The influence of the glycolide content in the polyester grafts and of the number of ester units in the grafts on thermal properties and swellability were studied as well. The high swellability in water is characteristic of all hydrogels. Differential scanning calorimetry (DSC) showed a single glass transition temperature that occurs in the range between 51 and 69 oC. Thermogravimetric analysis (TGA) of the networks showed the main loss in weight in the temperature range between 290 and 370 oC.
biodegradable ; hydrogels ; poly(D, L-lactide) ; poly(D, L-lactide-co-glycolide) ; polyesters ; poly(vinyl alcohol) ; swellability ; synthesis ; thermal properties ; thermogravimetric analysis
Glavni autori: Elvira Vidović i Hartwig Höcker
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Podaci o izdanju
45 (19)
2007.
4536-4544
objavljeno
0887-624X
1099-0518
10.1002/pola.22187