Citation: Jian Liu, Shu Guang Bian, Min Xiao, Shuan Jin Wang, Yue Zhong Meng. Thermal degradation and isothermal crystalline behavior of poly(trimethylene terephthalate)[J]. Chinese Chemical Letters, ;2009, 20(4): 487-491. doi: 10.1016/j.cclet.2008.11.035 shu

Thermal degradation and isothermal crystalline behavior of poly(trimethylene terephthalate)

a State Key Laboratory of Optoelectronic Materials and Technologies/Institute of Optoelectronic and Functional Composite Materials, Sun Yat-Sen University, Guangzhou 510275, PR China;
b High Technology R & D Center MOST, Beijing 100044, PR China

Received Date: 2 September 2008

Fund Project: The authors would like to thank the China High-Tech Development 863 Program (No. 2007AA03Z217), Guangdong Province Sci. & Tech. Bureau (No. 2006B12401006, 06300332, 2007A090302040), Guangzhou Sci. & Tech. Bureau (No. 2005U13D2031, 2007Z2-D2031), and Foshan Sci. & Tech. Bureau for financial support of this work.

Poly(trimethylene terephthalate) (PTT) is an excellent fiber material. Its thermal degradation and isothermal crystalline behaviors were in this study investigated using thermogravimetric analysis (TGA), thermogravimetric analysis-Fourier transform infrared spectroscopy (TGA-FTIR) analysis, differential scanning calorimetry (DSC) and X-ray diffraction (XRD). The thermal degradation mechanism of PTT follows Mclafferty rearrangement principle. The PTTwith intrinsic viscosity (IV) of 0.74 dl/g has a maximum crystallinity of about 55% at 190℃, as demonstrated by DSC and XRD measurements consistently.
- Poly(trimethylene terephthalate),
- Thermal degradation,
- Isothermal crystallization
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