Strong and tough bio-based biomimetic-multiphase composite polyesters with superior barrier and chemically closed-loop performances†

IF 9.2 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Green Chemistry Pub Date : 2024-12-03 DOI:10.1039/d4gc05032k

Hao Wang , Jiheng Ding , Qinchao Chu , Hongran Zhao , Jin Zhu , Jinggang Wang

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Abstract

Development of bio-based polyester packaging materials that adheres to the principles of green chemistry demands the simultaneous achievement of high performance and facile recycling performance but remains challenging. In this work, we fabricated a novel mica single-sheet (MSS)-modified furan-based biomimetic composite polyester (denoted as BCP), achieving strong, tough, and high-barrier films that exhibit a unique nature of aromatic ring and multi-phase architectures. BCP showed many beneficial structural characteristics: heterogeneous-induced nucleation and crystallization, multi-scale energy dissipation, strain-induced alignment and orientation, and multi-effect physical barrier effects. Benefitting from these features, the resultant BCP films showed a superior integration of high tensile strength (about 76 MPa), toughness (about 397%), and exceptional gas barrier properties (O₂ 0.0183 barrer, CO₂ 0.0244 barrer, and H₂O 1.49 × 10^–14 g cm cm⁻² s⁻¹ Pa⁻¹), which are greater than those of most engineering plastics. More importantly, BCP also displayed impressive UV-shielding properties, solvent resistance, and easy physical and chemical recycling performance. Hence, the current work presents novel insights for the design and fabrication of strong, tough, high-barrier, and sustainable bio-based polyester materials that comply with the principles of green chemistry.

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强大和坚韧的生物基仿生多相复合聚酯具有优越的屏障和化学闭环性能†

开发符合绿色化学原则的生物基聚酯包装材料需要同时实现高性能和易于回收的性能，但仍然具有挑战性。在这项工作中，我们制备了一种新型的云母单片（MSS）改性呋喃仿生复合聚酯（简称BCP），获得了具有独特芳香环和多相结构的高强度、坚韧和高阻隔的薄膜。BCP表现出许多有利的结构特征：多相诱导成核和结晶、多尺度能量耗散、应变诱导取向和多效应物理屏障效应。得益于这些特性，合成的BCP薄膜具有优异的综合抗拉强度（约76 MPa）、韧性（约397%）和优异的气体阻隔性能（O2 0.0183阻隔、CO2 0.0244阻隔和H2O 1.49 × 10-14 g cm cm−2 s−1 Pa−1），优于大多数工程塑料。更重要的是，BCP还显示出令人印象深刻的紫外线屏蔽性能，耐溶剂性，以及易于物理和化学回收的性能。因此，目前的工作为设计和制造符合绿色化学原则的强、坚韧、高阻隔和可持续的生物基聚酯材料提供了新的见解。

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来源期刊

Green Chemistry 化学-化学综合

CiteScore

16.10

自引率

7.10%

发文量

677

审稿时长

1.4 months

期刊介绍： Green Chemistry is a journal that provides a unique forum for the publication of innovative research on the development of alternative green and sustainable technologies. The scope of Green Chemistry is based on the definition proposed by Anastas and Warner (Green Chemistry: Theory and Practice, P T Anastas and J C Warner, Oxford University Press, Oxford, 1998), which defines green chemistry as the utilisation of a set of principles that reduces or eliminates the use or generation of hazardous substances in the design, manufacture and application of chemical products. Green Chemistry aims to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The journal welcomes submissions on all aspects of research relating to this endeavor and publishes original and significant cutting-edge research that is likely to be of wide general appeal. For a work to be published, it must present a significant advance in green chemistry, including a comparison with existing methods and a demonstration of advantages over those methods.