NDLI: Compressive mechanical properties and deformation behavior of porous polymer blends of poly(ε-caprolactone) and poly(l-lactic acid)

Content Provider	Springer Nature Link
Author	Park, Joo Eon Todo, Mitsugu
Copyright Year	2011
Abstract	Porous biodegradable polymeric scaffolds are developed by physically blending two different kinds of biodegradable polymers, PCL, and PLLA, for application in tissue engineering. The main objective of the development of this material is to control the mechanical properties, such as, elastic modulus and strength. The results from mechanical testing showed that the compressive mechanical properties of PCL/PLLA scaffold can be varied by changing the blend ratio. It also showed that these properties can be well predicted by the rule of mixture. The primary deformation mechanism of the scaffolds was found to be localized buckling of struts surrounding the pores. Localized ductile failure caused by PCL phase tends to be suppressed with increasing PLLA content. The immiscibility of PCL and PLLA caused the phase-separation morphology that strongly affected the macroscopic mechanical properties and the microscopic deformation behavior.
Starting Page	7850
Ending Page	7857
Page Count	8
File Format	PDF
ISSN	00222461
Journal	Journal of Materials Science
Volume Number	46
Issue Number	24
e-ISSN	15734803
Language	English
Publisher	Springer US
Publisher Date	2011-07-15
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mechanics Crystallography Polymer Sciences Characterization and Evaluation of Materials Continuum Mechanics and Mechanics of Materials Materials Science
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mechanical Engineering Polymers and Plastics

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