Abstract
The effect of orientation in the amorphous and crystalline region on the biodegradability of linear and star-shaped Poly(glycolide-co-ε-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.
| Original language | English |
|---|---|
| Pages (from-to) | 223-232 |
| Number of pages | 10 |
| Journal | Polymer Degradation and Stability |
| Volume | 80 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 |
| Externally published | Yes |
Bibliographical note
Funding Information:This work was supported by Ministry of Welfare and Health Grants No. 2M09710, 2M10780, and 2M11840.
Keywords
- Hydrolytic degradation
- Microstructural changes
- Orientation
- Poly(glycolide-co-ε-caprolactone)
- Wide-angle X-ray diffraction
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanics of Materials
- Polymers and Plastics
- Materials Chemistry