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聚酯聚醚多嵌段共聚物的硬段即使其平均聚合度仅2—3,也能结晶形成球晶形态。作者等合成了聚对苯二甲酸聚四亚甲基醚二酯:
The hard segment of the polyester polyether multiblock copolymer can crystallize into a spherulitic morphology even though its average degree of polymerization is only 2-3. The author synthesized a poly-tetramethylene terephthalate diester: