Relationship between dangling chains in polyurethanes and their properties

Eiichi Imoto, Suguru Motokucho, Ken Kojio, Mutsuhisa Furukawa

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 (ΔT g) 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 chains.

元の言語英語
ホスト出版物のタイトルPolymer Preprints, Japan - 55th SPSJ Annual Meeting
ページ1062
ページ数1
55
エディション1
出版物ステータス出版済み - 2006
外部発表Yes
イベント55th SPSJ Annual Meeting - Nagoya, 日本
継続期間: 5 24 20065 26 2006

その他

その他55th SPSJ Annual Meeting
日本
Nagoya
期間5/24/065/26/06

Fingerprint

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

All Science Journal Classification (ASJC) codes

  • Engineering(all)

これを引用

Imoto, E., Motokucho, S., Kojio, K., & Furukawa, M. (2006). Relationship between dangling chains in polyurethanes and their properties. : Polymer Preprints, Japan - 55th SPSJ Annual Meeting (1 版, 巻 55, pp. 1062)

Relationship between dangling chains in polyurethanes and their properties. / Imoto, Eiichi; Motokucho, Suguru; Kojio, Ken; Furukawa, Mutsuhisa.

Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 巻 55 1. 編 2006. p. 1062.

研究成果: 著書/レポートタイプへの貢献会議での発言

Imoto, E, Motokucho, S, Kojio, K & Furukawa, M 2006, Relationship between dangling chains in polyurethanes and their properties. : Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 1 Edn, 巻. 55, pp. 1062, 55th SPSJ Annual Meeting, Nagoya, 日本, 5/24/06.
Imoto E, Motokucho S, Kojio K, Furukawa M. Relationship between dangling chains in polyurethanes and their properties. : Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 1 版 巻 55. 2006. p. 1062
Imoto, Eiichi ; Motokucho, Suguru ; Kojio, Ken ; Furukawa, Mutsuhisa. / Relationship between dangling chains in polyurethanes and their properties. Polymer Preprints, Japan - 55th SPSJ Annual Meeting. 巻 55 1. 版 2006. pp. 1062
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