THE STRUCTURE CHARACTERIZATION ON POLY (ETHYLE- NE TEREPHTHALATE) POLY (TETRAMETHYLENE ETHER) MULTIBLOCK COPOLYMER
聚对苯二甲酸乙二酯-聚四亚甲基醚多嵌段共聚物的结构特征

In this paper, structure of the aggragative state ot poly (ethylene terephthlalte)-poly (tetramethylene ether) multiblock copolymer was studied by IR, DSC and electron microscope. The block ratio of the copolymer and ts sequence distribution was measured by 1H-and 13C-NMR method.