本文是对硬链段聚对苯二甲酸乙二酯-软链段聚四亚甲基醚聚酯-聚醚嵌段共聚物的冷拉取问,并通过热定型而得到高强度、高模量的材料及其物理机械性能的研究。 实验部分 样品的制备 聚酯-聚醚嵌段聚合物按一般熔融缩聚法制得。硬链段聚酯重量含量40％,[η]=1.37,在英国1122 Instron This article is the hard segment of polyethylene terephthalate - soft segment polytetramethylene ether polyester - polyether block copolymer cold drawn asked, and obtained by heat setting high strength, high modulus Quantitative Materials and Their Physical and Mechanical Properties. Preparation of Experimental Samples Polyester-polyether block copolymers were prepared by conventional melt polycondensation. Hard segment polyester weight content of 40%, [η] = 1.37, 1122 Instron in the United Kingdom