Journal
POLYMER
Volume 47, Issue 1, Pages 32-36Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2005.10.008
Keywords
poly(vinyl alcohol); poly(p-dioxanone); copolymer
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A novel biodegradable copolymer was synthesized from poly(vinyl alcohol) and poly (p-dioxanone) by ring-opening polymerization. The molecular structure of the copolymer was characterized by one- and two-dimensional NMR spectroscopy. The results of differential scanning calorimetry (DSC) show that the amphiphilic and comb grafted structure of the copolymer make its crystalline behavior different from that of the poly(p-dioxanone) homopolymer (PPDO). The in vitro degradation rate of the copolymers can be controlled via adjusting the number and length of PPDO segments of PVA-g-PPDO copolymers. The copolymer has a potential application in biomedical materials or in the controlled release of drug. (c) 2005 Elsevier Ltd. All rights reserved.
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