Compressive deformation behavior of porous PLLA/PCL polymer blend

Mitsugu Todo; Joo Eon Park; Hiroyuki Kuraoka; Jin Woong Kim; Kentaro Taki; Masahiro Ohshima

doi:10.1007/s10853-009-3546-0

Compressive deformation behavior of porous PLLA/PCL polymer blend

Mitsugu Todo, Joo Eon Park, Hiroyuki Kuraoka, Jin Woong Kim, Kentaro Taki, Masahiro Ohshima

Renewable Energy Center

Research output: Contribution to journal › Article

14 Citations (Scopus)

Abstract

Porous poly(L-lactide)/poly(e-caplolactone) (PLLA/PCL) was fabricated by using the solid-liquid phase separation method and the solvent sublimation process. Pelletized PLLA and PCL with a mixture ratio of 80:20 were dissolved in 1,4-dioxane to prepare PLLA/PCL solution of 7 wt%. The solution was then filled into a PP tube, and frozen from the bottom part at a constant rate in liquid nitrogen to induce solid-liquid phase separation. Cylindrical specimens of 8-mm diameter and 12-mm length were then fabricated. Compression tests of the porous specimens were conducted by using a conventional testing machine, and the compressive mechanical properties such as the critical stress and the modulus were evaluated. It is observed that these mechanical properties of PLLA/PCL stands between pure PLLA and PCL, indicating that the compressive properties of the biodegradable scaffolds can be controlled by using polymer blending.

Original language	English
Pages (from-to)	4191-4194
Number of pages	4
Journal	Journal of Materials Science
Volume	44
Issue number	15
DOIs	https://doi.org/10.1007/s10853-009-3546-0
Publication status	Published - Aug 2009

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Todo, M., Park, J. E., Kuraoka, H., Kim, J. W., Taki, K., & Ohshima, M. (2009). Compressive deformation behavior of porous PLLA/PCL polymer blend. Journal of Materials Science, 44(15), 4191-4194. https://doi.org/10.1007/s10853-009-3546-0

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title = "Compressive deformation behavior of porous PLLA/PCL polymer blend",

abstract = "Porous poly(L-lactide)/poly(e-caplolactone) (PLLA/PCL) was fabricated by using the solid-liquid phase separation method and the solvent sublimation process. Pelletized PLLA and PCL with a mixture ratio of 80:20 were dissolved in 1,4-dioxane to prepare PLLA/PCL solution of 7 wt%. The solution was then filled into a PP tube, and frozen from the bottom part at a constant rate in liquid nitrogen to induce solid-liquid phase separation. Cylindrical specimens of 8-mm diameter and 12-mm length were then fabricated. Compression tests of the porous specimens were conducted by using a conventional testing machine, and the compressive mechanical properties such as the critical stress and the modulus were evaluated. It is observed that these mechanical properties of PLLA/PCL stands between pure PLLA and PCL, indicating that the compressive properties of the biodegradable scaffolds can be controlled by using polymer blending.",

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AU - Todo, Mitsugu

AU - Park, Joo Eon

AU - Kuraoka, Hiroyuki

AU - Kim, Jin Woong

AU - Taki, Kentaro

AU - Ohshima, Masahiro

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N2 - Porous poly(L-lactide)/poly(e-caplolactone) (PLLA/PCL) was fabricated by using the solid-liquid phase separation method and the solvent sublimation process. Pelletized PLLA and PCL with a mixture ratio of 80:20 were dissolved in 1,4-dioxane to prepare PLLA/PCL solution of 7 wt%. The solution was then filled into a PP tube, and frozen from the bottom part at a constant rate in liquid nitrogen to induce solid-liquid phase separation. Cylindrical specimens of 8-mm diameter and 12-mm length were then fabricated. Compression tests of the porous specimens were conducted by using a conventional testing machine, and the compressive mechanical properties such as the critical stress and the modulus were evaluated. It is observed that these mechanical properties of PLLA/PCL stands between pure PLLA and PCL, indicating that the compressive properties of the biodegradable scaffolds can be controlled by using polymer blending.

AB - Porous poly(L-lactide)/poly(e-caplolactone) (PLLA/PCL) was fabricated by using the solid-liquid phase separation method and the solvent sublimation process. Pelletized PLLA and PCL with a mixture ratio of 80:20 were dissolved in 1,4-dioxane to prepare PLLA/PCL solution of 7 wt%. The solution was then filled into a PP tube, and frozen from the bottom part at a constant rate in liquid nitrogen to induce solid-liquid phase separation. Cylindrical specimens of 8-mm diameter and 12-mm length were then fabricated. Compression tests of the porous specimens were conducted by using a conventional testing machine, and the compressive mechanical properties such as the critical stress and the modulus were evaluated. It is observed that these mechanical properties of PLLA/PCL stands between pure PLLA and PCL, indicating that the compressive properties of the biodegradable scaffolds can be controlled by using polymer blending.

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