Effect of molecular orientation on biodegradability of poly(glycolide-co-ε-caprolactone)

Do Kwang Cho; Jun Wuk Park; Soo Hyun Kim; Young Ha Kim; Seung Soon Im

doi:10.1016/S0141-3910(02)00402-0

Effect of molecular orientation on biodegradability of poly(glycolide-co-ε-caprolactone)

Do Kwang Cho, Jun Wuk Park, Soo Hyun Kim, Young Ha Kim, Seung Soon Im

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

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	https://doi.org/10.1016/S0141-3910(02)00402-0
Publication status	Published - 2003
Externally published	Yes

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

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Cite this

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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.",

keywords = "Hydrolytic degradation, Microstructural changes, Orientation, Poly(glycolide-co-ε-caprolactone), Wide-angle X-ray diffraction",

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AU - Cho, Do Kwang

AU - Park, Jun Wuk

AU - Kim, Soo Hyun

AU - Kim, Young Ha

AU - Im, Seung Soon

PY - 2003

Y1 - 2003

N2 - 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.

AB - 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.

KW - Hydrolytic degradation

KW - Microstructural changes

KW - Orientation

KW - Poly(glycolide-co-ε-caprolactone)

KW - Wide-angle X-ray diffraction

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