Isothermal crystallization and melting behavior for novel cationic dyeable copolyester

摘要：

A series of novel cationic dyeable copolyesters (MCDP) were synthesized by direct esterification method. Isothermal crystallization and subsequent melting behavior for these copolyesters were carried out in a differential scanning calorimeter (DSC) over the crystallization temperature range of 176 ～224 ℃. The crystallization kinetics was assessed by a direct fitting of the experimental data to the Avrami models. It was found that the crystallization rates of these copolyesters decreased as increasing the branched diol content in the molecular chains. The melting of these copolyesters exhibited multiple-melting phenomenon. Lastly, the equilibrium melting temperature for these copolyesters was estimated according to the Hoffman-Weeks extrapolative methods.

作者: CHEN Bin GU Lixia

作者单位: State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,Donghua University, S State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University,

会议类型: 国际会议

会议名称: 2009 International Conference on Advanced Fibers and Polymer Materials(2009年先进纤维与聚合物材料国际学术会议)

会议地点: 上海

会议语种:英文

页码: 231-233

在线出版日期: 2009-10-21（万方平台首次上网日期，不代表论文的发表时间）