Molecular aggregation structure of a segmented poly(urethane-urea) elastomer derived from an amino acid-based diisocyanate

Yuji Hioaki, Ken Suzuki, Ken Kojio, Atsushi Takahara

研究成果: ジャーナルへの寄稿記事

抄録

We prepared segmented poly(urethane-urea)s (SPUUs) from a lysine-based diisocyanate (LDI) and an aliphatic polyester poly(ε-caprolactone) diol (PCL-diol), and 1,4-butanediamine (BDA). We also investigated the molecular aggregation structure, mechanical performance and biodegradability. Differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), Fourier transform infrared spectroscopy (FT-IR), wide-angle X-ray diffraction (WAXD) and small-angle X-ray scattering (SAXS) measurements indicated that the LDI-based hard segment (HS) shows weak segregation because of the bulky asymmetric chemical structure of the LDI. The stress-strain curve of PCL(1250)-LDI-BDA exhibits a yielding point and less mechanical strength than PCL(1250)-BDI-BDA because of the plastic deformation of the HS domains. PCL(1250)-LDI-BDA shows adequate biodegradability due to weak aggregation capacity of LDI-based components.

元の言語英語
ページ(範囲)31-36
ページ数6
ジャーナルKOBUNSHI RONBUNSHU
72
発行部数1
DOI
出版物ステータス出版済み - 1 1 2015

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Elastomers
Biodegradability
Urethane
Urea
urea
Lysine
Amino acids
Agglomeration
amino acid
Amino Acids
calorimetry
plastic deformation
Dynamic mechanical analysis
Stress-strain curves
X ray scattering
FTIR spectroscopy
Strength of materials
Fourier transform infrared spectroscopy
Polyesters
Differential scanning calorimetry

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Environmental Science(all)
  • Polymers and Plastics

これを引用

Molecular aggregation structure of a segmented poly(urethane-urea) elastomer derived from an amino acid-based diisocyanate. / Hioaki, Yuji; Suzuki, Ken; Kojio, Ken; Takahara, Atsushi.

:: KOBUNSHI RONBUNSHU, 巻 72, 番号 1, 01.01.2015, p. 31-36.

研究成果: ジャーナルへの寄稿記事

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