College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, P. R. China.
Wankai New Material Co., Ltd., Haining, 314415, P. R. China.
Macromol Rapid Commun. 2024 Jun;45(12):e2300715. doi: 10.1002/marc.202300715. Epub 2024 Apr 11.
The raw materials of Poly(ethylene terephthalate) (PET) are derived from petroleum-based resources, which are no sustainable. Therefore, previous researchers introduced biomass-derived 2,5-tetrahydrofurfuryl dimethanol (THFDM) into PET. However, its heat resistance has decreased compared to PET. In this paper, a novel bio-based copolyester, poly(ethylene glycol-co-2,5-tetrahydrofuran dimethanol-co-isosorbide terephthalate) (PEIFT), is prepared by introducing biomass-derived isosorbide (ISB) and THFDM into the PET chains through melting copolymerization process. With the introduction of ISB content, copolyesters' hydrophilicity and rigidity improve. Compared to PET, glass transition temperature (T) increases by over 5 °C. In addition, the toughness and spinning performance of PEIFT have also been improved as a result of the addition of THFDM components. The hydrophobicity of PEIFTs electrospinning is greatly improved, with a contact angle exceeding 135°. Finally, due to the good hydrophobicity of PEIFTs nanofibers, they have potential application value in the manufacture of hydrophobic nanofiber and filter films. Given its biomass source and excellent performance, they make it easier to replace materials derived from petroleum.
聚对苯二甲酸乙二醇酯（PET）的原料来自石油基资源，这些资源不可持续。因此，先前的研究人员将生物基来源的 2,5- 四氢呋喃二甲醇（THFDM）引入到 PET 中。然而，与 PET 相比，其耐热性有所下降。在本文中，通过熔融共聚的方法，将生物基来源的异山梨醇（ISB）和 THFDM 引入到 PET 链中，制备了一种新型的生物基共聚酯聚乙二醇-2,5-四氢呋喃二甲醇-对苯二甲酸异山梨醇酯（PEIFT）。随着 ISB 含量的引入，共聚酯的亲水性和刚性得到提高。与 PET 相比，玻璃化转变温度（T）升高超过 5°C。此外，由于 THFDM 成分的加入，PEIFT 的韧性和纺丝性能也得到了提高。PEIFT 的静电纺丝的疏水性得到了极大的改善，接触角超过 135°。最后，由于 PEIFT 纳米纤维具有良好的疏水性，它们在制造疏水性纳米纤维和过滤膜方面具有潜在的应用价值。鉴于其生物基来源和优异的性能，它们更容易替代石油基材料。
