Biorenewable and circular polyolefin thermoplastic elastomers

IF 14.7 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Nature Communications Pub Date : 2024-10-01 DOI:10.1038/s41467-024-52850-0

Ye Sha, Xiaofan Chen, Wei Sun, Junfeng Zhou, Yucheng He, Enhua Xu, Zhenyang Luo, Yonghong Zhou, Puyou Jia

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Abstract

Polymers capable of depolymerizing back to their own monomers offer a promising solution to address the challenges in polymer sustainability. Despite significant progress has been achieved in plastics circularity, chemical recycling of thermoplastic elastomers is relatively less concerned, largely because of their intrinsic complex multicomponents. This work creates a homopolymer-based platform towards chemically recyclable but tough thermoplastic elastomers. It is enabled by a semicrystalline polymer with high molecular weight but low crystallinity, which is prepared through ring-opening metathesis polymerization of a fully biobased cyclic olefin. By shifting the ring−chain equilibrium, quantitative conversions were achieved for both forward polymerization and reverse depolymerization. This simple circular, high-performance thermoplastic elastomer platform based on biomass highlights the importance of monomer design in addressing three challenges in sustainable polymers: the feedstock renewability, depolymerization selectivity, and performance trade-offs.

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生物可再生和循环聚烯烃热塑性弹性体

能够解聚回自身单体的聚合物为应对聚合物可持续发展的挑战提供了一种前景广阔的解决方案。尽管在塑料循环利用方面取得了重大进展，但热塑性弹性体的化学循环利用却相对较少受到关注，这主要是因为热塑性弹性体本身具有复杂的多组分。这项工作创建了一个基于均聚物的平台，以实现热塑性弹性体的化学可回收性和韧性。这种高分子量、低结晶度的半结晶聚合物是通过全生物基环烯烃的开环偏聚聚合反应制备的。通过改变环链平衡，正向聚合和反向解聚都实现了定量转化。这种基于生物质的简单圆形高性能热塑性弹性体平台突出了单体设计在应对可持续聚合物三大挑战方面的重要性：原料的可再生性、解聚选择性和性能权衡。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nature Communications Biological Science Disciplines-

CiteScore

24.90

自引率

2.40%

发文量

6928

审稿时长

3.7 months

期刊介绍： Nature Communications, an open-access journal, publishes high-quality research spanning all areas of the natural sciences. Papers featured in the journal showcase significant advances relevant to specialists in each respective field. With a 2-year impact factor of 16.6 (2022) and a median time of 8 days from submission to the first editorial decision, Nature Communications is committed to rapid dissemination of research findings. As a multidisciplinary journal, it welcomes contributions from biological, health, physical, chemical, Earth, social, mathematical, applied, and engineering sciences, aiming to highlight important breakthroughs within each domain.