Effect of the cyclic structure content on aliphatic polycarbonate-based polyurethane

Yuan Hsiang Wu, Cheng Chien Wang, Chuh Yung Chen

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)695-702
Number of pages8
JournalPolymer Journal
Volume53
Issue number6
DOIs
Publication statusPublished - 2021 Jun

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

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