Thermal Properties of Ester-Type Easy Cationic Dyeable Poly(ethylene Terephthalate) (ECDP) Polymers

Abstract:

This study investigated the thermal properties of ester-type easy cationic dyeable poly(ethylene terephthalate) (ECDP) polymers using differential scanning calorimetry (DSC), therogravimetric analysis (TGA). The mass ratios of 5-sodium sulfo bis(-hydroxyethyl) isophthalate(SIPE) for ECDP polymers were 2.8%, 5.5%, 6.8%, respectively. The fourth monomers were diethylene glycol adipate (DGA), diethylene glycol succinate (DGS) and diethylene glycol subacate (DES) with different contents. The results suggested that the Tg of ester-type ECDP decreased with the increasing the molecule weight of the fourth monomer at fixed SIPE and fourth monomer contents. The Tch of ECDP polymer to be lower than that of the CDP polymer with the same SIPE content. And it decreased as SIPE and fourth monomer contents increased, it also decreased with the increasing of the molecule weight of the fourth monomer given the same SIPE content. The effect of the ester-type soft segments reduced the Tm of ECDP. The thermal stability of ECDP polymer was less than PET and CDP polymers, and it decreased with increasing SIPE content, but increased with the ester-type fourth monomer content increasing.

• Periodical: Applied Mechanics and Materials (Volumes 44-47)
• Pages: 2409-2413
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.44-47.2409
• Online since: December 2010
• Authors: Yu Sun, Guo Zheng, Hong Xiang Yang, Yan Jun Liu, Xiao Ning Li
• Keywords: ECDP, Fourth Monomer, Glass Transition Temperature, Thermal Stability

References

[1] Kai-Jen Hsiao, Zhi-Feng Jen and Jen-Chang Yang: Journal of Polnmer Research Vol. 9(2002), pp.53-60.

[2] Wu Rongrui, Gao Jing and LI Huiping: Chinese Journal of Polymer Science Vol. 3(1997), p.226~230.

[3] Wen-Chin Tsen, Yao-Chi Shu and Keven Hsiao: Journal of Polnmer Research Vol. 11(2004), pp.189-194.

[4] Keven Hsiao, Yao-Chi Shu and Wen-Chin Tsen: Journal of Polnmer Research, Vol. 10(2003) pp.161-169.

[5] B. Wunderlich: Polym Eng Sci., Vol. 18(1978), pp.431-437.

[6] Kai-Jen Hsiao, Jen-Liang Kuo, Jing-Wen Tang and Lien-Tai Chen: Journal of Applied Polymer Science, Vol. 98(2005), pp.550-556.

[7] B. Perreot and G. Widman: Journal of Thermal Analysis, Vol. 37 (1991), pp.1785-1792.

[8] Yao-Chi Shu and Kai-Jen Hsiao: Journal of Applied Polymer Science, Vol. 102 (2006), pp.5396-5405.