Effects of network structure and dangling chains on mechanical properties of polyurethane gels

Mutsuhisa Furukawa, Suguru Motokucho, Ken Kojio, Eiichi Imoto

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

Polyurethane gels (PUGs) were synthesized from poly (oxypropylene) glycol (PPG) (M̄n=2000, 4000 and 8000) and lysine triisocyanate (LTI). To control the number of dangling chains in the PUGs, with the ratio of K=[NCO]/[OH] was varied. The glass transition temperature of PPG in the PUGs (Tg,PUG) was observed at around -60 °C by differential scanning calorimetry (DSC). The difference temperature of the glass transition temperature of PPG (Tg,PPG) and Tg,PUG(ΔTg) was decreased with an increase in molecular weight for PPG and a decrease in K. In the tan δ curve, different relaxation that can be attributed to the motion of the dangling chain was observed in the higher temperature side of α-relaxation. These all results are related to the formation of incomplete network structure due to the decrease in K, which can act as a dangling chain.

元の言語英語
ホスト出版物のタイトル55th SPSJ Symposium on Macromolecules
ページ3381-3382
ページ数2
55
エディション2
出版物ステータス出版済み - 2006
外部発表Yes
イベント55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, 日本
継続期間: 9 20 20069 22 2006

その他

その他55th Society of Polymer Science Japan Symposium on Macromolecules
日本
Toyama
期間9/20/069/22/06

Fingerprint

Glycols
Polyurethanes
Gels
Mechanical properties
Differential scanning calorimetry
Molecular weight
Temperature
Glass transition temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Furukawa, M., Motokucho, S., Kojio, K., & Imoto, E. (2006). Effects of network structure and dangling chains on mechanical properties of polyurethane gels. : 55th SPSJ Symposium on Macromolecules (2 版, 巻 55, pp. 3381-3382)

Effects of network structure and dangling chains on mechanical properties of polyurethane gels. / Furukawa, Mutsuhisa; Motokucho, Suguru; Kojio, Ken; Imoto, Eiichi.

55th SPSJ Symposium on Macromolecules. 巻 55 2. 編 2006. p. 3381-3382.

研究成果: 著書/レポートタイプへの貢献会議での発言

Furukawa, M, Motokucho, S, Kojio, K & Imoto, E 2006, Effects of network structure and dangling chains on mechanical properties of polyurethane gels. : 55th SPSJ Symposium on Macromolecules. 2 Edn, 巻. 55, pp. 3381-3382, 55th Society of Polymer Science Japan Symposium on Macromolecules, Toyama, 日本, 9/20/06.
Furukawa M, Motokucho S, Kojio K, Imoto E. Effects of network structure and dangling chains on mechanical properties of polyurethane gels. : 55th SPSJ Symposium on Macromolecules. 2 版 巻 55. 2006. p. 3381-3382
Furukawa, Mutsuhisa ; Motokucho, Suguru ; Kojio, Ken ; Imoto, Eiichi. / Effects of network structure and dangling chains on mechanical properties of polyurethane gels. 55th SPSJ Symposium on Macromolecules. 巻 55 2. 版 2006. pp. 3381-3382
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