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

Research output: Contribution to journalArticle

2 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)934-939
Number of pages6
JournalScience of Advanced Materials
Volume7
Issue number5
DOIs
Publication statusPublished - Jan 1 2015
Externally publishedYes

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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)

Cite this

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.

In: Science of Advanced Materials, Vol. 7, No. 5, 01.01.2015, p. 934-939.

Research output: Contribution to journalArticle

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, vol. 7, no. 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. In: Science of Advanced Materials. 2015 ; Vol. 7, No. 5. pp. 934-939.
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AU - Komatsu, Takuya

AU - Nozaki, Shuhei

AU - Motokucho, Suguru

AU - Yoshinaga, Kohji

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