Preparation of multi-functional polyamide vitrimers via the Ugi four-component polymerization and oxime-promoted transcarbamoylation reaction,Polymer Chemistry

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Preparation of multi-functional polyamide vitrimers via the Ugi four-component polymerization and oxime-promoted transcarbamoylation reaction
Polymer Chemistry ( IF 4.1 ) Pub Date : 2021-2-26 , DOI: 10.1039/d0py01733g
Zijian Guo _{1,

1,

2,

3,

4} , Wenyan Wang _{1,

1,

2,

3,

4} , Yumin Yang _{1,

1,

2,

3,

4} , Kashif Majeed _{1,

1,

2,

3,

4} , Baoliang Zhang _{1,

1,

2,

3,

4} , Fengtao Zhou _{5,

6,

7,

8} , Qiuyu Zhang _{1,

1,

2,

3,

4}

Affiliation

In order to control the relationship between the polymer structure and performance, multi-component reactions (MCRs) have been used to adjust the properties of polymers due to their high atom utilization and structural designability. As a newly emerging type of material, vitrimers combine the advantages of both thermoplastics and thermosets. Therefore, it would be an exciting idea if the advantages of MCRs can be used to prepare vitrimers. In this work, for the first time, the Ugi four-component reaction (Ugi-4CR) is utilized to fabricate polyamide vitrimers (Dx-Poly). Among the resultant Dx-Poly, D400-Poly exhibits the best mechanical properties (stress = 8.75 MPa and strain = 255%) as well as excellent reprocessing performance. Additionally, these materials also have self-healing and shape memory properties. The use of the Ugi-4CR to prepare polyamide vitrimers will not only expand the scope of application of MCRs to the materials field, but also offer new ideas for the preparation of structurally designable vitrimers, which makes the “old” organic reaction gain “new” vitality in the field of materials.

中文翻译：

通过Ugi四组分聚合和肟促进的氨基甲酸酯化反应制备多功能聚酰胺微粉

为了控制聚合物结构与性能之间的关系，由于其高的原子利用率和结构可设计性，多组分反应（MCR）已用于调节聚合物的性能。作为一种新兴的材料，微晶粉结合了热塑性塑料和热固性材料的优点。因此，如果可以将MCR的优点用于制备玻璃化剂，那将是一个令人振奋的想法。在这项工作中，第一次使用Ugi四组分反应（Ugi-4CR）来制造聚酰胺三元共聚物（D x -Poly）。在所得的D x中-Poly，D400-Poly具有最佳的机械性能（应力= 8.75 MPa，应变= 255％）以及出色的后处理性能。此外，这些材料还具有自我修复和形状记忆的特性。使用Ugi-4CR制备聚酰胺微粉不仅会扩大MCR在材料领域的应用范围，而且还会为结构上可设计的微粉的制备提供新思路，从而使“旧的”有机反应获得“新的”在材料领域的生命力。

更新日期：2021-03-11

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