Improvement of microstructures and properties of biodegradable PLLA and PCL blends compatibilized with a triblock copolymer

V. Vilay, M. Mariatti, Zulkifli Ahmad, K. Pasomsouk, Mitsugu Todo

研究成果: ジャーナルへの寄稿記事

30 引用 (Scopus)

抄録

Incompatibility and immiscible binary blends of poly(l-lactide) (PLLA) and poly(e{open}-caprolactone) (PCL) with 70/30wt.% composition were modified and prepared by addition of 0.5, 1 and 2phr of polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO-PPO-PEO) triblock copolymer. The effect of the copolymer ratio on the microstructures and properties of the blends was investigated using proton nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscope (FE-SEM), dynamic mechanical analysis, differential scanning calorimetry, thermo-gravimetric analysis, and Mode I fracture testing. The addition of the copolymer to PLLA/PCL improved its fracture toughness. A reduction in the amount of spherical of PCL upon the addition of copolymers was confirmed by FE-SEM. The glass transition temperature (Tg) and melting temperature (Tm) of PLLA and PCL shifted closer together, indicating that the blend compatibility increased. Thus, PEO-PPO-PEO can be employed as compatibilizer to improve the toughness and compatibility of PLLA/PCL blends.

元の言語英語
ページ(範囲)6930-6937
ページ数8
ジャーナルMaterials Science and Engineering A
527
発行部数26
DOI
出版物ステータス出版済み - 10 1 2010

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Polyethylene oxides
Block copolymers
copolymers
Polypropylene oxides
microstructure
Microstructure
oxides
Copolymers
polyethylenes
Field emission
Electron microscopes
Fracture testing
Scanning
polypropylene
compatibility
scanning
Compatibilizers
field emission
Dynamic mechanical analysis
electron microscopes

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

これを引用

Improvement of microstructures and properties of biodegradable PLLA and PCL blends compatibilized with a triblock copolymer. / Vilay, V.; Mariatti, M.; Ahmad, Zulkifli; Pasomsouk, K.; Todo, Mitsugu.

:: Materials Science and Engineering A, 巻 527, 番号 26, 01.10.2010, p. 6930-6937.

研究成果: ジャーナルへの寄稿記事

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AU - Vilay, V.

AU - Mariatti, M.

AU - Ahmad, Zulkifli

AU - Pasomsouk, K.

AU - Todo, Mitsugu

PY - 2010/10/1

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N2 - Incompatibility and immiscible binary blends of poly(l-lactide) (PLLA) and poly(e{open}-caprolactone) (PCL) with 70/30wt.% composition were modified and prepared by addition of 0.5, 1 and 2phr of polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO-PPO-PEO) triblock copolymer. The effect of the copolymer ratio on the microstructures and properties of the blends was investigated using proton nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscope (FE-SEM), dynamic mechanical analysis, differential scanning calorimetry, thermo-gravimetric analysis, and Mode I fracture testing. The addition of the copolymer to PLLA/PCL improved its fracture toughness. A reduction in the amount of spherical of PCL upon the addition of copolymers was confirmed by FE-SEM. The glass transition temperature (Tg) and melting temperature (Tm) of PLLA and PCL shifted closer together, indicating that the blend compatibility increased. Thus, PEO-PPO-PEO can be employed as compatibilizer to improve the toughness and compatibility of PLLA/PCL blends.

AB - Incompatibility and immiscible binary blends of poly(l-lactide) (PLLA) and poly(e{open}-caprolactone) (PCL) with 70/30wt.% composition were modified and prepared by addition of 0.5, 1 and 2phr of polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO-PPO-PEO) triblock copolymer. The effect of the copolymer ratio on the microstructures and properties of the blends was investigated using proton nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscope (FE-SEM), dynamic mechanical analysis, differential scanning calorimetry, thermo-gravimetric analysis, and Mode I fracture testing. The addition of the copolymer to PLLA/PCL improved its fracture toughness. A reduction in the amount of spherical of PCL upon the addition of copolymers was confirmed by FE-SEM. The glass transition temperature (Tg) and melting temperature (Tm) of PLLA and PCL shifted closer together, indicating that the blend compatibility increased. Thus, PEO-PPO-PEO can be employed as compatibilizer to improve the toughness and compatibility of PLLA/PCL blends.

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