本文通过红外光谱、DSC和电镜等手段阐明了聚对苯二甲酸乙二酯-聚四亚甲基醚多嵌段共聚物的聚集态结构,特别是采用核磁共振法测定了嵌段比例和序列分布。 In this paper, the aggregation structure of poly (ethylene terephthalate) -poly (tetramethylene ether) multiblock copolymer has been elucidated by means of infrared spectroscopy, DSC and electron microscopy. In particular, the block ratio and sequence were determined by nuclear magnetic resonance distributed.