TY - JOUR
T1 - Effect of the cyclic structure content on aliphatic polycarbonate-based polyurethane
AU - Wu, Yuan Hsiang
AU - Wang, Cheng Chien
AU - Chen, Chuh Yung
N1 - Funding Information:
Acknowledgements The financial support from the Ministry of Science and Technology of the Republic of China (MOST 108-2221-E-006-001) is gratefully acknowledged. The authors also gratefully acknowledge the Instrument Center of National Cheng Kung University for letting them use the Bruker Avance 600 NMR spectrometer.
Publisher Copyright:
© 2021, The Author(s), under exclusive licence to The Society of Polymer Science, Japan.
PY - 2021/6
Y1 - 2021/6
N2 - Aliphatic polycarbonate-based polyurethanes were successfully synthesized using two aliphatic polycarbonate polyols and hexamethylene diisocyanate (HDI) with 1,4-butanediol (1,4-BD) as the chain extender. One of the aliphatic polycarbonate polyols, named PBC-diol, was prepared from dimethyl carbonate (DMC) and 1,4-BD, while the other, named PCHC-diol, was derived by reacting DMC with 1,4-cyclohexanedimethanol (CHDM). The results of the thermogravimetric analysis (TGA) indicated that the cyclic structure improved the thermal stability of the polyurethanes. In addition, the differential scanning calorimetry (DSC) curves showed that the cyclic structure increased the glass transition temperature (Tg) of the polyurethanes but slowed their crystallization. Furthermore, the mechanical properties of the polyurethanes with different cyclic structure contents were analyzed using Instron. Although the elongation at break decreased, the tensile strength increased from 32.6 to 844.0 MPa when the PBC-diol was replaced with PCHC-diol in the polyurethanes. Finally, Fourier transform infrared (FTIR) analysis was conducted to investigate the formation of hydrogen bonds. The relationship between the hydrogen bonds and cyclic structure content was also shown in this study.
AB - Aliphatic polycarbonate-based polyurethanes were successfully synthesized using two aliphatic polycarbonate polyols and hexamethylene diisocyanate (HDI) with 1,4-butanediol (1,4-BD) as the chain extender. One of the aliphatic polycarbonate polyols, named PBC-diol, was prepared from dimethyl carbonate (DMC) and 1,4-BD, while the other, named PCHC-diol, was derived by reacting DMC with 1,4-cyclohexanedimethanol (CHDM). The results of the thermogravimetric analysis (TGA) indicated that the cyclic structure improved the thermal stability of the polyurethanes. In addition, the differential scanning calorimetry (DSC) curves showed that the cyclic structure increased the glass transition temperature (Tg) of the polyurethanes but slowed their crystallization. Furthermore, the mechanical properties of the polyurethanes with different cyclic structure contents were analyzed using Instron. Although the elongation at break decreased, the tensile strength increased from 32.6 to 844.0 MPa when the PBC-diol was replaced with PCHC-diol in the polyurethanes. Finally, Fourier transform infrared (FTIR) analysis was conducted to investigate the formation of hydrogen bonds. The relationship between the hydrogen bonds and cyclic structure content was also shown in this study.
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U2 - 10.1038/s41428-021-00462-6
DO - 10.1038/s41428-021-00462-6
M3 - Article
AN - SCOPUS:85101242045
SN - 0032-3896
VL - 53
SP - 695
EP - 702
JO - Polymer Journal
JF - Polymer Journal
IS - 6
ER -