Improvement of the low-temperature property of aliphatic polycarbonate glycols-based polyurethane elastomers

Ken Kojio, Mutsuhisa Furukawa, Machiko Shimada, Makoto Shimada, Takuya Komatsu, Shuhei Nozaki, Suguru Motokucho, Kohji Yoshinaga

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

Structure-property relationship of polyurethane elastomers (PUEs) based on aliphatic carbonate glycols (PCglycols) with various molecular weights (HO-[(CH2)mOC(=O)O]n-(CH2)m-OH, m = 3 and 6, Mn = 1000-3000) were investigated to improve their low-temperature property. Differential scanning calorimetry (DSC) measurement revealed that the glass transition temperature (Tg) of the soft segment in the PUEs decreased ca. 10-25 oC and crystallized hard segment exhibited larger heat of fusion with increasing molecular weight of the PC-glycol. This trend clearly implies that the degree of microphase separation of the PUEs became stronger with an increase in molecular weight of the PC-glycol. In the tensile testing, Young's modulus and tensile strength increased with increase in the degree of microphase separation. In other words, an increase in molecular weight of the PC-glycol gives the PUEs bearing lower Tg and superior mechanical properties.

元の言語英語
ページ(範囲)934-939
ページ数6
ジャーナルScience of Advanced Materials
7
発行部数5
DOI
出版物ステータス出版済み - 1 1 2015
外部発表Yes

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polycarbonate
Elastomers
Low temperature properties
Glycols
Polyurethanes
Polycarbonates
Molecular weight
Microphase separation
Bearings (structural)
Carbonates
Tensile testing
Differential scanning calorimetry
Tensile strength
Fusion reactions
Elastic moduli
Mechanical properties

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

これを引用

Improvement of the low-temperature property of aliphatic polycarbonate glycols-based polyurethane elastomers. / Kojio, Ken; Furukawa, Mutsuhisa; Shimada, Machiko; Shimada, Makoto; Komatsu, Takuya; Nozaki, Shuhei; Motokucho, Suguru; Yoshinaga, Kohji.

:: Science of Advanced Materials, 巻 7, 番号 5, 01.01.2015, p. 934-939.

研究成果: ジャーナルへの寄稿記事

Kojio, K, Furukawa, M, Shimada, M, Shimada, M, Komatsu, T, Nozaki, S, Motokucho, S & Yoshinaga, K 2015, 'Improvement of the low-temperature property of aliphatic polycarbonate glycols-based polyurethane elastomers', Science of Advanced Materials, 巻. 7, 番号 5, pp. 934-939. https://doi.org/10.1166/sam.2015.1913
Kojio, Ken ; Furukawa, Mutsuhisa ; Shimada, Machiko ; Shimada, Makoto ; Komatsu, Takuya ; Nozaki, Shuhei ; Motokucho, Suguru ; Yoshinaga, Kohji. / Improvement of the low-temperature property of aliphatic polycarbonate glycols-based polyurethane elastomers. :: Science of Advanced Materials. 2015 ; 巻 7, 番号 5. pp. 934-939.
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abstract = "Structure-property relationship of polyurethane elastomers (PUEs) based on aliphatic carbonate glycols (PCglycols) with various molecular weights (HO-[(CH2)mOC(=O)O]n-(CH2)m-OH, m = 3 and 6, Mn = 1000-3000) were investigated to improve their low-temperature property. Differential scanning calorimetry (DSC) measurement revealed that the glass transition temperature (Tg) of the soft segment in the PUEs decreased ca. 10-25 oC and crystallized hard segment exhibited larger heat of fusion with increasing molecular weight of the PC-glycol. This trend clearly implies that the degree of microphase separation of the PUEs became stronger with an increase in molecular weight of the PC-glycol. In the tensile testing, Young's modulus and tensile strength increased with increase in the degree of microphase separation. In other words, an increase in molecular weight of the PC-glycol gives the PUEs bearing lower Tg and superior mechanical properties.",
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AU - Furukawa, Mutsuhisa

AU - Shimada, Machiko

AU - Shimada, Makoto

AU - Komatsu, Takuya

AU - Nozaki, Shuhei

AU - Motokucho, Suguru

AU - Yoshinaga, Kohji

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