Synthesis and characterization of linear self-healing polyurethane based on thermally reversible Diels-Alder reaction

被引：140

作者：

Du, Pengfei ^{[1
]}

Liu, Xuanxuan ^{[1
]}

Zheng, Zhen ^{[1
]}

Wang, Xinling ^{[1
]}

Joncheray, Thomas ^{[2
]}

Zhang, Yuefan ^{[3
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Sch Chem & Chem Technol, Shanghai 200240, Peoples R China

[2] Huntsman Europe BVBA, B-3078 Everberg, Belgium

[3] Huntsman Chem R&D Ctr Shanghai Co Ltd, Shanghai 200245, Peoples R China

来源：

RSC ADVANCES | 2013年 / 3卷 / 35期

关键词：

CLICK CHEMISTRY; BEARING FURAN; AB-MONOMERS; POLYMERIZATION; MALEIMIDE; POLYMERS; MOIETIES;

D O I：

10.1039/c3ra42278j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

New linear polyurethane was synthesized via a Diels-Alder (DA) reaction between a polyurethane prepolymer end-capped with furan groups (MPF) and bismaleimide (BMI). The structure of the linear polyurethane with DA bonds was characterized by H-1 NMR, ATI-FTIR, TGA and AFM. The introduction of DA bonds enables the polyurethane thermal reversibility, which was studied thoroughly by H-1 NMR, DSC and GPC. Besides, the new linear polyurethane with DA bonds also exhibits self-healing properties under heat treatment, which was observed by polarized optical microscope. The self-healing efficiency determined by the recovery of breaking tensile strength after being damaged and healed can reach up to 80%.

引用

页码：15475 / 15482

页数：8

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