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Effect of molecular orientation on biodegradability of poly(glycolide-co-ε-caprolactone)
- Source :
- Polymer Degradation and Stability. 80:223-232
- Publication Year :
- 2003
- Publisher :
- Elsevier BV, 2003.
-
Abstract
- The effect of orientation in the amorphous and crystalline region on the biodegradability of linear and star-shaped Poly(glycolide-co-e-caprolactone)(PGCL) was studied in terms of the crystalline orientation, the crystallinity and thermal properties. Microstructual changes during hydrolysis of the drawn linear and star-shaped PGCL films were investigated using the conventional wide-angle X-ray diffraction equipped a fiber specimen attachment. The drawn star-shaped PGCL showed higher degradation rate than the drawn linear shaped and the degradation decreased with increasing draw ratio. During hydrolysis, the crystallinity for all the samples increased but the crystalline orientation decreased. In particular, the decrement of the crystalline orientation for star-shaped PGCL was higher than that of linear PGCL.
- Subjects :
- Materials science
Polymers and Plastics
Biodegradation
Condensed Matter Physics
Amorphous solid
Orientation (vector space)
Crystallinity
Hydrolysis
chemistry.chemical_compound
Chemical engineering
chemistry
Mechanics of Materials
Polymer chemistry
Materials Chemistry
Degradation (geology)
Caprolactone
Chemical decomposition
Subjects
Details
- ISSN :
- 01413910
- Volume :
- 80
- Database :
- OpenAIRE
- Journal :
- Polymer Degradation and Stability
- Accession number :
- edsair.doi...........10d28042f79ee3de5c58d835c47cf917