Citation: Yong XU, Sheng Rong YE, Jin Wen QIAN. Thermal Behavior of Poly(trimethylene-co-ethylene terephthalate)[J]. Chinese Chemical Letters, ;2005, 16(7): 971-974. shu

Thermal Behavior of Poly(trimethylene-co-ethylene terephthalate)

Institute of Polymer Science, Zhejiang University, Hangzhou 310027

Received Date: 16 August 2004

Poly (trimethylene-co-ethylene terephthalate) with various compositions of diol has been synthesized. The crystallization of copolyesters with high comonomer content was observed by both wide-angle X-ray diffraction (WAXD) and differential scanning calorimetry (DSC). It was found that the copolyesters become less crystallizable with the involvement of the comonomer,the crystals of crystallizable copolyesters come from PTT or PET homopolymers. The glass transition temperature (T_g) of the copolyester increases with increasing PET component in the copolyester, and the relationship between T_g and composition obey both Fox equation and additive law, the former is better in describing this relationship.
- Copolyester,
- polytrimethylene terephthalate,
- polyethylene terephthalate,
- thermal behavior
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