Journal
POLYMER BULLETIN
Volume 61, Issue 2, Pages 139-146Publisher
SPRINGER
DOI: 10.1007/s00289-008-0939-1
Keywords
poly(lactic acid); poly(p-dioxanone); block copolymer; biodegradable
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Poly(lactic acid-b-p-dioxanone) block copolymers (P(LA-b-PDO)) were synthesized by ring-opening polymerization of p-dioxanone using poly(lactic acid) (PLA) with different molecular weights as macroinitiators in N(2) atmosphere. The copolymers were characterized by (1)H-NMR spectra. The thermal and crystalline behaviors and thermal stability of these copolymers were investigated by DSC, TGA and WAXD. The results indicated that the contents of each segment and the intrinsic viscosities affected the properties of copolymers obviously.
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