Issue 35, 2013
From the journal:

RSC Advances

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

Pengfei Du,a   Xuanxuan Liu,a   Zhen Zheng,a   Xinling Wang,*a   Thomas Joncherayb  and  Yuefan Zhangc  

* Corresponding authors

a School of Chemistry and Chemical Technology, Shanghai Jiao Tong University, State Key Laboratory of Metal Matrix Composites (Shanghai Jiao Tong University), Shanghai 200240, China
E-mail: xlwang@sjtu.edu.cn, zzheng@sjtu.edu.cn
Fax: 86-21-5474 1297
Tel: 86-21-5474 5817

b Huntsman (Europe) BVBA, Everberg B-3078, Belgium

c Huntsman Chemistry R&D Center (Shanghai) Co., Ltd, Shanghai 200245, China

Abstract

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 1H NMR, ATI-FTIR, TGA and AFM. The introduction of DA bonds enables the polyurethane thermal reversibility, which was studied thoroughly by 1H 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%.

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

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Article information

DOI
https://doi.org/10.1039/C3RA42278J
Article type
Paper
Submitted
09 May 2013
Accepted
24 Jun 2013
First published
27 Jun 2013

RSC Adv., 2013,3, 15475-15482

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

P. Du, X. Liu, Z. Zheng, X. Wang, T. Joncheray and Y. Zhang, RSC Adv., 2013, 3, 15475 DOI: 10.1039/C3RA42278J

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