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ABA triblock copolymers from poly( p ‐dioxanone) and poly(ethylene glycol)
Author(s) -
Yang KeKe,
Zheng Li,
Wang YuZhong,
Zeng JianBing,
Wang XiuLi,
Chen SiChong,
Zeng Qiang,
Li Bin
Publication year - 2006
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.24273
Subject(s) - copolymer , ethylene glycol , polymer chemistry , thermogravimetric analysis , differential scanning calorimetry , materials science , thermal stability , peg ratio , crystallization , polymerization , chemical engineering , polymer , composite material , physics , finance , engineering , economics , thermodynamics
Poly( p ‐dioxanone)–poly(ethylene glycol)–poly( p ‐dioxanone) ABA triblock copolymers (PEDO) were synthesized by ring‐opening polymerization from p ‐dioxanone using poly(ethylene glycol) (PEG) with different molecular weights as macroinitiators in N 2 atmosphere. The copolymer was characterized by 1 H NMR spectroscope. The thermal behavior, crystallization, and thermal stability of these copolymers were investigated by differential scanning calorimetry and thermogravimetric measurements. The water absorption of these copolymers was also measured. The results indicated that the content and length of PEG chain have a greater effect on the properties of copolymers. This kind of biodegradable copolymer will find a potential application in biomedical materials. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102:1092–1097, 2006