含PBSu和PBAu链段可降解聚酯酰脲的合成及性能研究*

戴红, 刘跃军, 谭海英, 崔玲娜, 杨伟

Synthesis and Properties of Polyester Ureide Multiblock Copolymers Composed of Poly (butylene-succinate-uera) and Poly (adipate-succinate-uera)

DAI Hong, LIU Yuejun, TAN Haiying, CUI Lingna, YANG Wei

表4 共聚物的拉伸性能

Table 4 Tensile properties of copolymers films

Sample Tensile strength / MPa Elongation at break / % PBSu-PBAu100-0 41.1±3.5 12±7 PBSu-PBAu90-10 38.5±1.6 16±2 PBSu-PBAu70-30 21.0±2.8 121±12 PBSu-PBAu50-50 23.2±2.0 139±9 PBSu-PBAu30-70 24.6±1.4 142±16 PBSu-PBAu10-90 24.1±4.5 186±24 PBSu-PBAu0-100 15.3±0.7 215±21 PBS 36.4±1.8 25±14 PBA 14.4±0.6 226±6