Effect of halogenated hydrocarbon crosslinkers on self-healing poly (1,2,3-triazolium) adhesives

被引：1

作者：

Zhang, Jun ^{[1
]}

Guo, Rongye ^{[1
]}

Li, Yubing ^{[1
]}

Ma, Hanyu ^{[1
]}

Tang, Junkun ^{[1
]}

Liu, Zuozhen ^{[2
]}

Huang, Farong ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Specially Funct Polymer Mat & Related Tech, Minist Educ, Shanghai 200237, Peoples R China

[2] East China Univ Sci & Technol, Huachang Polymers Co Ltd, Shanghai 200241, Peoples R China

来源：

POLYMER | 2023年 / 283卷

基金：

中国国家自然科学基金;

关键词：

Covalent adaptable network; Self-healing; Poly(1; 2; 3-triazolium); Adhesive; COVALENT ADAPTABLE NETWORKS; CLICK CHEMISTRY; PLASTICS; LINKING;

D O I：

10.1016/j.polymer.2023.126192

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(1,2,3-triazolium) (PTAM) is a kind of self-healing adhesive based on dynamic reversible covalent 1,2,3-triazolium, which is formed through the reaction of halogenated hydrocarbon and 1,2,3-triazole and plays an important role in the properties of PTAM. Therefore, it is valuable to understand the effect of halogenated hydrocarbon crosslinkers on the properties of PTAM. A series of PTAM adhesive with different crosslinkers have been prepared. The reactivity between halogenated hydrocarbon and 1,2,3-triazole was different. Crosslinkers with longer chain, iodine substituted and aromatic structure improved the adhesive property of PTAM adhesive joints, which was up to 17 MPa. The first self-healing efficiency of PTAM adhesive joints with aliphatic bromine crosslinkers reached more than 100% and the maximum cycle times of them was more than 9 before failure. The self-healing properties of PTAMs depend on the segment motion and anti-thermal oxygen aging of PTAMs. These results provide some insights for the structural design of self-healing adhesive and dynamic covalent materials.

引用

页数：10

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