期刊
BULLETIN OF MATERIALS SCIENCE
卷 35, 期 4, 页码 575-578出版社
INDIAN ACAD SCIENCES
DOI: 10.1007/s12034-012-0326-2
关键词
Polymers; composite materials; thin films; microstructure; compatibility
资金
- Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation
The in vitro degradation behaviour of poly(glycolic acid) (PGA) and its composite films containing poly(DL-lactic acid) (PDLLA) and poly(DL-lactic-co-glycolic acid) (PDLGA) were investigated via mass loss, scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). All the films were prepared by solution casting, using 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) as the solvent. Since the degradation rate of PDLLA is lower than that of PGA, those of the PDLLA/PGA composite films decreased. As a compatibilizer, PDLGA improved the compatibility and hydrolytic stability of PDLLA/PGA composite films. Changes in the composite films indicate that this kind of PGA-based composite biomaterial may be applicable to device design for clinical application in the future.
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