Achieving higher performances without an external curing agent in natural magnolol-based epoxy resin

被引：37

作者：

Cao, Qi ^{[1
]}

Weng, Zhihuan ^{[1
]}

Qi, Yu ^{[1
]}

Li, Jiahui ^{[1
]}

Liu, Wentao ^{[1
]}

Liu, Chengde ^{[1
]}

Zhang, Shouhai ^{[1
]}

Wei, Zhiyong ^{[1
]}

Chen, Yousi ^{[1
]}

Jian, Xigao ^{[1
]}

机构：

[1] Dalian Univ Technol, Liaoning High Performance Resin Engn Res Ctr, Dept Polymer Sci & Engn, State Key Lab Fine Chem, Dalian 116024, Peoples R China

来源：

CHINESE CHEMICAL LETTERS | 2022年 / 33卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Epoxy resin; Magnolol; Self-curing; Fully bio-based; Antimicrobial properties; BIOBASED EPOXY; THERMOSETS; VITRIMER; LIGNIN; MONOMER;

D O I：

10.1016/j.cclet.2021.09.025

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Bio-based epoxy thermoset prepared from renewable biomass raw materials can alleviate fossil energy crisis and reduce environmental pollution, which satisfies the needs of sustainable social development. In this study, a bio-based epoxy thermoset precursor (MGOL-EP) was synthesized from a naturally occurring magnolol through a facile and efficient one-step process. And the fully bio-based epoxy thermoset (MGOL-EP-SC) was obtained by self-curing without adding any other hardener. MGOL-EP-SC revealed an extremely high glass-transition temperature (T-g) of 265 degrees C and char yield of 53.2% (in N-2), which were at the highest level among the fully bio-based epoxy thermosets reported so far. In addition, when the MGOL-EP was cured with 4,4'-methylenedianiline (DDM), T-g of the MGOL-EP/DDM was decreased by 61 degrees C and the other comprehensive performance had also been decreased, which was due to a reduction in biphenyl structure content and cross-linking density by adding the external curing agents. Moreover, the MGOL-EP-SC presented certain killing rate (48.4%) to Staphylococcus aureus. These findings provide a new design strategy for engineering high-performance and functional epoxy thermoset with high biomass content. (c) 2021 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.

引用

页码：2195 / 2199

页数：5

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