Synthesis and crystallization behavior of poly(trimethylene terephthalate)–poly(ethylene glycol) segmented copolyesters
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Poly(trimethylene terephthalate) (PTT) is a relatively new linear aromatic polyester and has drawn more and more attention due to its outstanding characteristics such as high elastic recovery, chemical resistance and resilience[1, 2, 3]. As a typical semicrystalline polymeric material, the applicability and processing condition of PTT are determined by its thermal properties and crystallization behavior. Thus, many studies have focused on this topic [4, 5, 6, 7]. In our previous work, the kinetics analysis of PTT crystallization including the secondary crystallization process was carried out by using a new mathematical model . Furthermore, to improve the properties of polyester material, copolymerization using several amounts of a second glycol or diacid comonomer is an effective approach to attain new linear thermoplastic polyesters with modified thermal properties. Recently the authors reported investigations about the composition dependence of thermal properties of...
KeywordsPEG2000 Crystallization Behavior Isothermal Crystallization Soft Segment Distillation Column
The authors would like to thank Prof. Tien-wei Shyr, Feng Chia University, Taiwan, ROC and School of Chemical Engineering of NJUST for their financial support.