Polymer ( IF 4.6 ) Pub Date : 2020-07-22 , DOI: 10.1016/j.polymer.2020.122800 Guoqiang Wang , Yue Xu , Min Jiang , Rui Wang , Honghua Wang , Yin Liang , Guangyuan Zhou
The bio-based monomer 1,5-pentanediol (PeDO) was incorporated into poly(ethylene 2,5-thiophenedicarboxylate) (PETF). A series of poly(ethylene-co-1,5-pentylene 2,5-thiophenedicarboxylate)s (PEPTs) with various PeDO content (Mw > 30 000 g mol−1) were readily synthesized. DSC results indicated that PETF and PEPT13 were crystalline polyesters, but other PEPTs were amorphous polymers. With the content of PeDO, the elongation at break gradually increased due to the introduction of the more flexible diol. When the content of PeDO was 29%, PEPT29 exhibits high tensile strength (56.8 MPa) and elongation at break (550%). Meanwhile, the glass transition temperature (45.5 °C) was still higher than the room temperature.
中文翻译:
具有高韧性的完全生物基聚酯聚(乙烯-co-1,5-戊烯2,5-噻吩二甲酸)(PEPTs):合成,表征和热机械性能
将基于生物的单体1,5-戊二醇(PeDO)掺入到聚(乙烯2,5-噻吩二羧酸酯)(PETF)中。一系列的聚(乙烯-共-1,5-亚戊基2,5- thiophenedicarboxylate)S(PEPTs)与各种PEDO含量(中号瓦特 > 30000克摩尔-1)被容易地合成。DSC结果表明,PETF和PEPT13是结晶聚酯,而其他PEPT是无定形聚合物。随着PeDO含量的增加,断裂伸长率由于引入了更具柔韧性的二醇而逐渐增加。当PeDO的含量为29%时,PEPT29表现出高拉伸强度(56.8MPa)和断裂伸长率(550%)。同时,玻璃化转变温度(45.5°C)仍高于室温。