具有氢键网络的机械强度高、可再加工和化学可回收的呋喃基聚（酰基腙）材料

IF 5.8 2区化学 Q1 POLYMER SCIENCE

European Polymer Journal Pub Date : 2024-11-15 DOI:10.1016/j.eurpolymj.2024.113584

Xiaowei Li , Chilong Liu , Xiaoru Quan, Yanxin Zhang, Su Wang, Shuangfei Zhao, Jiming Yang, Yirong Feng, Wei He, Kai Guo

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引用次数: 0

摘要

酰基腙连接因其可逆特性和易于制备而在设计可重构和化学可回收聚合物方面具有吸引力。我们以生物基 2,5-二甲酰基呋喃（DFF）和二酰肼化合物为单体，制备出机械强度高、热稳定性好且可化学回收的聚酰腙（pDFF-IPDH）。线性链通过酰腙分子之间的氢键进行物理交联。pDFF-IPDH 样品具有良好的机械性能，同时具有高强度和韧性。线性和可逆的酰基腙骨架赋予聚合物极具吸引力的温度动态特性，使拓扑网络能够重新排列，从而赋予聚（酰基腙）极佳的再加工性。此外，甲醛促进解聚的可行性提供了一种有效的回收途径，为解决可回收性和使用性能之间的难题提供了大有可为的机会。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Mechanically strong, reprocessable and chemically recyclable furan-based poly(acylhydrazone)s materials with hydrogen-bonding networks

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Mechanically strong, reprocessable and chemically recyclable furan-based poly(acylhydrazone)s materials with hydrogen-bonding networks

Acylhydrazone linkages are attractive in designing reconfigurable and chemically recyclable polymer due to their reversible characteristics and ease of preparation. We fabricate mechanically strong, thermally stable and chemically recyclable poly(acylhydrazone)s (pDFF-IPDH) using biobased 2,5-diformylfuran (DFF) and dihydrazide compounds as monomers. The linear chains are physically cross-linked via hydrogen bonding between the acylhydrazone moieties. The pDFF-IPDH sample exhibits good mechanical properties, offering both high strength and toughness. The linear and reversible acylhydrazone backbones endow polymers with attractive temperature-dependent dynamic natures, which enables the topological network to rearrange, giving the poly(acylhydrazone)s excellent reprocessability. Moreover, the feasibility of formaldehyde-promoted depolymerization presents an effective recycling pathway, offering promising opportunities in addressing the challenge between recyclability and service performance.

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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.