Forensics of polymer networks

Forensics of polymer networks
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聚合物网络取证

DOI:
10.1038/s41563-023-01663-5
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发表时间:
2023
期刊:
影响因子:
41.2
通讯作者:
Sheiko, Sergei S.
Sheiko, Sergei S.
中科院分区:
材料科学1区
文献类型:
--
作者:
Dobrynin, Andrey V.;Tian, Yuan;Jacobs, Michael;Nikitina, Evgeniia A.;Ivanov, Dimitri A.;Maw, Mitchell;Vashahi, Foad;Sheiko, Sergei S.

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我们的生活无法想象没有聚合物网络,从合成橡胶到生物组织,聚合物网络范围广泛。它们的性质--弹性、应变硬化和伸长性--由化学成分、链构象和网络拓扑的卷积控制。然而,自1839年查尔斯·古德伊尔发现橡胶硫化以来,网络的内部组织一直是一个密封的“黑匣子”。虽然许多研究表明网络属性如何响应拓扑变化,但目前还没有方法可以根据其属性来解码网络结构。我们通过分析网络对变形的非线性响应来解决这个问题,以量化它们的交联度、链灵活性和应力支撑链的比例。解码后的结构信息使网络综合的质量控制、目标与实际架构的比较以及根据应力分布的有效性进行网络分类成为可能。开发的取证方法是未来实施人工智能原则进行软物质设计的关键一步。
Our lives cannot be imagined without polymer networks, which range widely, from synthetic rubber to biological tissues. Their properties—elasticity, strain-stiffening and stretchability—are controlled by a convolution of chemical composition, strand conformation and network topology. Yet, since the discovery of rubber vulcanization by Charles Goodyear in 1839, the internal organization of networks has remained a sealed ‘black box’. While many studies show how network properties respond to topology variation, no method currently exists that would allow the decoding of the network structure from its properties. We address this problem by analysing networks’ nonlinear responses to deformation to quantify their crosslink density, strand flexibility and fraction of stress-supporting strands. The decoded structural information enables the quality control of network synthesis, comparison of targeted to actual architecture and network classification according to the effectiveness of stress distribution. The developed forensic approach is a vital step in future implementation of artificial intelligence principles for soft matter design.
DOI: --
发表时间: 2015
期刊:
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