Synthesis and performance study of High-Barrier Bio-Based biodegradable polyesters derived from Thiophene-2,5-Dicarboxylic acid

IF 5.8 2区化学 Q1 POLYMER SCIENCE

European Polymer Journal Pub Date : 2025-04-16 DOI:10.1016/j.eurpolymj.2025.113947

Manyuan Yin , Zhicheng Guo , Zicheng Yuan , Han Hu , Jin Zhu , Jinggang Wang

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引用次数: 0

Abstract

The bio-based high gas barrier polyesters play an important role in the food packaging field. In this study, a new bio-based polyester poly(pentamethylene 2,5-thiophene dicarboxylate) (PPeTh) was synthesized by melting polycondensation from thiophene-2,5-dicarboxylic acid and pentanediol and systematically compared with the properties of counterpart polyesters derived from both petroleum-based poly(pentamethylene terephthalate) (PPeT), poly(pentamethylene isophthalates) (PPeI) and bio-based poly(pentamethylene 2,5-furoate) (PPeF). The results indicated that PPeTh, PPeF, PPeT, and PPeI all exhibited excellent thermal stability. PPeTh showed a higher tensile strength and elongation at break compared to PPeT (σ_b: 22.5 MPa, ε_b: 975 %), and it also surpasses PPeF in terms of elastic modulus, yield strength, and elongation at break (E: 455 MPa, σ_y: 17.6 MPa, ε_b: 975 %). Furthermore, PPeTh exhibited superior gas barrier properties (BIFp(CO₂):67.05, BIFp(O₂): 16.89) and demonstrates potential biodegradability in the presence of CALB enzyme and composting conditions. A series of results suggested that the bio-based polyester PPeTh possesses the best overall performance, outperforming PPeF and exceeding that of petroleum-based polyesters PPeT and PPeI, indicating its potential application value.

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噻吩-2,5-二羧酸高阻隔生物基可生物降解聚酯的合成及性能研究

生物基高阻气聚酯在食品包装领域发挥着重要作用。以噻吩-2,5-二羧酸和戊二醇为原料，通过熔融缩聚合成了一种新型生物基聚酯聚（五亚甲基2,5-噻吩二羧酸酯）（PPeTh），并与石油基聚（五亚甲基对苯二甲酸五亚甲基）（pet）、聚（五亚甲基间苯二甲酸酯）（pei）和生物基聚（五亚甲基2,5-呋喃酸五亚甲基）（PPeF）的对应物的性能进行了系统的比较。结果表明，PPeTh、PPeF、PPeT和PPeI均表现出优异的热稳定性。PPeTh具有较高的抗拉强度和断裂伸长率（σb: 22.5 MPa, εb: 975%），且在弹性模量、屈服强度和断裂伸长率（E: 455 MPa, σy: 17.6 MPa, εb: 975%）方面均优于PPeF。此外，PPeTh具有良好的气体屏障性能(BIFp(CO2):67.05, BIFp(O2): 16.89)，并且在CALB酶存在和堆肥条件下具有潜在的生物降解性。一系列研究结果表明，生物基聚酯PPeTh综合性能最佳，优于PPeF，并超过石油基聚酯pet和PPeI，具有潜在的应用价值。

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来源期刊

European Polymer Journal 化学-高分子科学

CiteScore

9.90

自引率

10.00%

发文量

691

审稿时长

23 days

期刊介绍： European Polymer Journal is dedicated to publishing work on fundamental and applied polymer chemistry and macromolecular materials. The journal covers all aspects of polymer synthesis, including polymerization mechanisms and chemical functional transformations, with a focus on novel polymers and the relationships between molecular structure and polymer properties. In addition, we welcome submissions on bio-based or renewable polymers, stimuli-responsive systems and polymer bio-hybrids. European Polymer Journal also publishes research on the biomedical application of polymers, including drug delivery and regenerative medicine. The main scope is covered but not limited to the following core research areas: Polymer synthesis and functionalization • Novel synthetic routes for polymerization, functional modification, controlled/living polymerization and precision polymers. Stimuli-responsive polymers • Including shape memory and self-healing polymers. Supramolecular polymers and self-assembly • Molecular recognition and higher order polymer structures. Renewable and sustainable polymers • Bio-based, biodegradable and anti-microbial polymers and polymeric bio-nanocomposites. Polymers at interfaces and surfaces • Chemistry and engineering of surfaces with biological relevance, including patterning, antifouling polymers and polymers for membrane applications. Biomedical applications and nanomedicine • Polymers for regenerative medicine, drug delivery molecular release and gene therapy The scope of European Polymer Journal no longer includes Polymer Physics.