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Synthesis, crystallization behavior and mechanical properties of novel biobased Poly(octamethylene succinate)
Polymer Degradation and Stability ( IF 5.9 ) Pub Date : 2019-11-27 , DOI: 10.1016/j.polymdegradstab.2019.109043
Yaqing Shang , Xiaojing Li , Zhiguo Jiang , Zhaobin Qiu

In this research, a novel relatively long chain aliphatic polyester poly(octamethylene succinate) (POS) with a high weight-average molecular weight of 1.05 × 105 g/mol was synthesized from succinic acid and 1,8-octanediol via a melt polycondensation method. POS was a semicrystalline polyester with a glass transition temperature of −53 °C and an equilibrium melting point temperature of 72.5 °C. With an increase in crystallization temperature, the overall crystallization rate and spherulitic growth rate of POS gradually decreased. Due to its high molecular weight and relatively long chain chemical structure, POS displayed relatively good mechanical properties with the Young's modulus, tensile strength, and elongation at break being 526 ± 8 MPa, 12.0 ± 0.3 MPa, and 165 ± 24%, respectively, thereby making it a potential candidate to find end use as a packing material.



中文翻译:

新型生物基聚辛二酸琥珀酸酯的合成,结晶行为和力学性能

在这项研究中,一种新型的相对长链的脂肪族聚酯聚(八亚甲基琥珀酸酯)(POS),其重均分子量为1.05×10 5 通过熔融缩聚法由琥珀酸和1,8-辛二醇合成g / mol。POS是半结晶聚酯,玻璃化转变温度为-53°C,平衡熔点温度为72.5°C。随着结晶温度的升高,POS的总结晶速率和球状生长速率逐渐降低。由于POS的高分子量和相对长的链化学结构,它显示出相对较好的机械性能,杨氏模量,拉伸强度和断裂伸长率分别为526±8 MPa,12.0±0.3 MPa和165±24%,因此,它有可能成为最终用途的包装材料。

更新日期:2019-11-27
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