The effect of stereocomplex polylactide particles on the mechanical properties of poly(lactide-co-glycolide) copolymer
- Authors
- Ye, Kwangnam; Purnama, Purba; Jung, Youngmee; Kim, Daeheum; Kim, Soo Hyun
- Issue Date
- 1월-2016
- Publisher
- SAGE PUBLICATIONS LTD
- Keywords
- Poly(lactide-co-glycolide); polylactide; stereocomplex; mechanical property; hydrolytic degradation
- Citation
- JOURNAL OF BIOACTIVE AND COMPATIBLE POLYMERS, v.31, no.1, pp.3 - 14
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF BIOACTIVE AND COMPATIBLE POLYMERS
- Volume
- 31
- Number
- 1
- Start Page
- 3
- End Page
- 14
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/90024
- DOI
- 10.1177/0883911515592424
- ISSN
- 0883-9115
- Abstract
- The effect of the addition of stereocomplex polylactide with different contents and particle sizes to a poly(lactide-co-glycolide) matrix was investigated. The organic filler stereocomplex polylactide affects the mechanical properties of poly(lactide-co-glycolide) as an organic nucleating agent without any surface modification. A low content of organic stereocomplex polylactide particles in the poly(lactide-co-glycolide) blends enhanced their mechanical properties. A smaller stereocomplex polylactide particle size improves the mechanical properties of poly(lactide-co-glycolide) blends more effectively. The improvement in the mechanical properties of the poly(lactide-co-glycolide) blends stemmed from the nucleating effects of the stereocomplex polylactide particles in the poly(lactide-co-glycolide) matrix. The optimum content and homogeneous distribution of stereocomplex polylactide particles increased Young's modulus and tensile strength by approximately 15% and 30%, respectively. The presence of stereocomplex polylactide particles also accelerated the hydrolytic degradation, as represented by a decrease in the molecular weight. The improvements in the mechanical properties and hydrolytic degradation acceleration match the requirements of poly(lactide-co-glycolide) applications as bone fracture fixation materials.
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Collections - Graduate School > KU-KIST Graduate School of Converging Science and Technology > 1. Journal Articles
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