Synthesis and thermal stability of polyurethane using L-ascorbic acid

Takashi Akutagawa, Ken Kojio, Mutsuhisa Furukawa

研究成果: 会議への寄与タイプ論文

抄録

The purpose of this study is the improvement of thermal stability of the polyurethane elastmers (PUEs) by introduction of L-Ascorbic acid (L-As). The PUEs were prepared from poly(oxytetramethylene) glycol (PTMG: M̄n=2017), and 4,4'-diphenylmethane diisocyanate (MDI), ethylene glycol (EG) or mixture of L-As and EG (0:100 25:75 33:66 50:50 wt%) as a curing agent by a prepolymer method. Density, hardness, aggregation structure, molecular mobility and thermal stability were investigated by measuring FT-IR, 1H-pulsed NMR, thermal and dynamic viscoelastic properties. After thermal deterioration, density, hardness and dynamic storage modulus of rubbery plateau region of the PUEs decreased. With increasing L-As content, those magnitudes for the PUEs did not show large differences before and after thermal deterioration. These results clearly suggest that the L-As act as an oxidation inhibitor in the PUEs.

元の言語英語
ページ数1
出版物ステータス出版済み - 12 1 2005
イベント54th SPSJ Annual Meeting 2005 - Yokohama, 日本
継続期間: 5 25 20055 27 2005

その他

その他54th SPSJ Annual Meeting 2005
日本
Yokohama
期間5/25/055/27/05

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Ascorbic acid
Polyurethanes
Thermodynamic stability
Ethylene glycol
Deterioration
Hardness
Corrosion inhibitors
Glycols
Molecular structure
Curing
Agglomeration
Elastic moduli
Nuclear magnetic resonance
Oxidation
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Akutagawa, T., Kojio, K., & Furukawa, M. (2005). Synthesis and thermal stability of polyurethane using L-ascorbic acid. 論文発表場所 54th SPSJ Annual Meeting 2005, Yokohama, 日本.

Synthesis and thermal stability of polyurethane using L-ascorbic acid. / Akutagawa, Takashi; Kojio, Ken; Furukawa, Mutsuhisa.

2005. 論文発表場所 54th SPSJ Annual Meeting 2005, Yokohama, 日本.

研究成果: 会議への寄与タイプ論文

Akutagawa, T, Kojio, K & Furukawa, M 2005, 'Synthesis and thermal stability of polyurethane using L-ascorbic acid' 論文発表場所 54th SPSJ Annual Meeting 2005, Yokohama, 日本, 5/25/05 - 5/27/05, .
Akutagawa T, Kojio K, Furukawa M. Synthesis and thermal stability of polyurethane using L-ascorbic acid. 2005. 論文発表場所 54th SPSJ Annual Meeting 2005, Yokohama, 日本.
Akutagawa, Takashi ; Kojio, Ken ; Furukawa, Mutsuhisa. / Synthesis and thermal stability of polyurethane using L-ascorbic acid. 論文発表場所 54th SPSJ Annual Meeting 2005, Yokohama, 日本.1 p.
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