Temperature-Modulated Scanning Calorimetry of Melting–Recrystallization of Poly(butylene terephthalate)
Graduate School of Advanced Science and Engineering, Hiroshima University, Higashi-Hiroshima 739-8521, Japan
Polymers 2021, 13(1), 152; https://doi.org/10.3390/polym13010152
Received: 11 November 2020
/
Revised: 24 December 2020
/
Accepted: 29 December 2020
/
Published: 1 January 2021
(This article belongs to the Special Issue Honor the Achievements of Prof. Alejandro J. Müller in Polymer Crystallization)
The melting and recrystallization behaviors of poly(butylene terephthalate) (PBT) were investigated using temperature-modulated scanning calorimetry in both fast- and conventional slow-scan modes. With this method, the response of multiple transition kinetics, such as melting and recrystallization, can be differentiated by utilizing the difference in the time constants of the kinetics. In addition to the previous result of temperature-modulated fast-scan calorimetry of polyethylene terephthalate (PET), the supporting evidence of another aromatic polyester, PBT, confirmed the behavior of the exothermic process of recrystallization, which proceeds simultaneously with melting on heating scan in the temperature range of double melting peaks starting just above the crystallization temperature up to the main melting peak. Because the crystallization of PBT is much more pronounced than that of PET, similar behavior of recrystallization was obtained by the conventional temperature-modulated differential scanning calorimetry at a slow-scan rate.
View Full-Text
Keywords:
melting; crystallization; recrystallization; poly(butylene terephthalate); periodic temperature nodulation
▼
Show Figures
Graphical abstract
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
MDPI and ACS Style
Toda, A. Temperature-Modulated Scanning Calorimetry of Melting–Recrystallization of Poly(butylene terephthalate). Polymers 2021, 13, 152. https://doi.org/10.3390/polym13010152
AMA Style
Toda A. Temperature-Modulated Scanning Calorimetry of Melting–Recrystallization of Poly(butylene terephthalate). Polymers. 2021; 13(1):152. https://doi.org/10.3390/polym13010152
Chicago/Turabian StyleToda, Akihiko. 2021. "Temperature-Modulated Scanning Calorimetry of Melting–Recrystallization of Poly(butylene terephthalate)" Polymers 13, no. 1: 152. https://doi.org/10.3390/polym13010152
Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.
