Issue 7, 2012
From the journal:

RSC Advances

Synthesis and properties of thermosetting resin based on urushiol

Hongli Xu,a   Zaijun Lu*b  and  Guangzhao Zhang*ac  

* Corresponding authors

a Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei, China
E-mail: gzzhang@ustc.edu.cn
Fax: +86 551 3606743
Tel: +86 551 3606763

b School of Chemistry and Chemical Engineering, Shandong University, Jinan, China
E-mail: z.lu@sdu.edu.cn
Fax: +86 531 88564464
Tel: +86 531 88361361

c Faculty of Materials Science and Engineering, South China University of Technology, Guangzhou, China

Abstract

We have synthesized a novel benzoxazine monomer and polybenzoxazine thermosetting resin based on urushiol, a natural product. Fourier transform infrared (FTIR) spectroscopy and differential scanning calorimetry (DSC) studies demonstrate that the thermally activated ring opening polymerization of the benzoxazine occurs at around 210 °C without addition of catalyst. Thermal gravimetric analysis (TGA) measurements show the temperatures corresponding to 5% and 10% weight loss are 325 °C and 357 °C, respectively, with a char yield of 22% at 600 °C. Dynamic mechanical analysis (DMA) studies indicate the urushiol-based polybenzoxazine exhibits excellent toughness with a storage modulus (G′) of 606 MPa at room temperature and an elongation at break of 17.4%.

Graphical abstract: Synthesis and properties of thermosetting resin based on urushiol

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Article information

DOI
https://doi.org/10.1039/C2RA00829G
Article type
Paper
Submitted
04 Oct 2011
Accepted
20 Dec 2011
First published
08 Feb 2012

RSC Adv., 2012,2, 2768-2772

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Synthesis and properties of thermosetting resin based on urushiol

H. Xu, Z. Lu and G. Zhang, RSC Adv., 2012, 2, 2768 DOI: 10.1039/C2RA00829G

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