Relationship between dangling chains in polyurethanes and their properties

Eiichi Imoto, Suguru Motokucho, Ken Kojio, Mutsuhisa Furukawa

研究成果: 会議への寄与タイプ論文

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
ページ数1
出版物ステータス出版済み - 10 18 2006
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. 論文発表場所 55th SPSJ Annual Meeting, Nagoya, 日本.

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

2006. 論文発表場所 55th SPSJ Annual Meeting, Nagoya, 日本.

研究成果: 会議への寄与タイプ論文

Imoto, E, Motokucho, S, Kojio, K & Furukawa, M 2006, 'Relationship between dangling chains in polyurethanes and their properties' 論文発表場所 55th SPSJ Annual Meeting, Nagoya, 日本, 5/24/06 - 5/26/06, .
Imoto E, Motokucho S, Kojio K, Furukawa M. Relationship between dangling chains in polyurethanes and their properties. 2006. 論文発表場所 55th SPSJ Annual Meeting, Nagoya, 日本.
Imoto, Eiichi ; Motokucho, Suguru ; Kojio, Ken ; Furukawa, Mutsuhisa. / Relationship between dangling chains in polyurethanes and their properties. 論文発表場所 55th SPSJ Annual Meeting, Nagoya, 日本.1 p.
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