mechanically robust supramolecular polymer
mechanically robust supramolecular polymer
批准号:
22KJ0970
负责人:
程 逸人
金额:
$1.09万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for JSPS Fellows
财政年份:
2023
资助国家:
日本
项目状态:
已结题
起止时间:
2023-03-08 至 2024-03-31
中文摘要
聚合物玻璃无疑给我们的现代生活带来了巨大的进步。然而,日益严重的塑料污染对我们的星球构成了严重威胁。我的研究致力于解决这个紧迫的问题,重点是开发可持续的聚合物材料。超分子聚合物通过非共价键连接,为可持续的聚合物应用提供了有前途的解决方案。在这项研究中,我们提出了一种新的方法,通过将两种类型的小分子与盐桥相连来构建坚固的超分子聚合物材料,盐桥是最强的非共价相互作用之一。高的物理交联密度赋予了超分子聚合物玻璃(SPGS)优异的力学性能,此外,我们还通过调节单体的间隔基,对SPGS的力学性能、湿度稳定性、流变性和加工条件进行了调节。值得注意的是,SPGS在温和的条件下可以很容易地自我修复和回收,为实现绿色和可持续发展的社会提供了一种有前途的解决方案。为了更深入地了解其潜在的机制,我们使用了先进的技术,如傅立叶变换红外光谱和宽带介电谱来研究SPGS的性质。
英文摘要
Polymer glasses have undoubtedly brought significant advancements to our modern lives. However, the increasing plastic pollution poses severe threats to our planet. My research is dedicated to addressing this urgent issue, with a focus on developing sustainable polymer materials.Supramolecular polymers, which are connected by non-covalent bonds, offer promising solutions for sustainable polymer use. Despite this, their weak bond energies have resulted in perceived lower mechanical properties.In this study, we present a new approach to constructing robust supramolecular polymer materials by linking two types of small molecules with salt-bridges, one of the strongest non-covalent interactions. The high physical cross-linking densities endow supramolecular polymer glasses (SPGs) with remarkable mechanical properties.Furthermore, we have modulated the mechanical properties, humidity stability, rheology properties, and processing conditions of SPGs by adjusting the spacer of monomers. Notably, SPGs can be easily self-healed and recycled under mild conditions, offering a promising solution for achieving a green and sustainable society.To gain a deeper understanding of the underlying mechanisms, we employed advanced techniques such as FTIR and broadband dielectric spectrum to investigate the properties of SPGs.
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