[1]曾艳宁,杨斌,杨伟明.环氧大豆油制备可自愈合、焊接、再加工的硼酯基类玻璃高分子[J].高分子通报,2022,(10):87-98.[doi:10.14028/j.cnki.1003-3726.2022.10.010]
 ZENG Yan-ning,YANG Bin,YANG Wei-ming.Self-healing, Welding, Reprocessing Boronic Ester Vitrimers Based on Epoxidized Soybean Oil[J].POLYMER BULLETIN,2022,(10):87-98.[doi:10.14028/j.cnki.1003-3726.2022.10.010]
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环氧大豆油制备可自愈合、焊接、再加工的硼酯基类玻璃高分子()
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《高分子通报》[ISSN:1003-3726/CN:11-2051/O6]

卷:
期数:
2022年10期
页码:
87-98
栏目:
出版日期:
2022-10-20

文章信息/Info

Title:
Self-healing, Welding, Reprocessing Boronic Ester Vitrimers Based on Epoxidized Soybean Oil
作者:
曾艳宁 杨斌 杨伟明
桂林理工大学材料科学与工程学院, 桂林 541004
Author(s):
ZENG Yan-ning YANG Bin YANG Wei-ming
School of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China
关键词:
类玻璃高分子硼酸酯键自修复再加工焊接
Keywords:
VitrimersBoronic ester bondSelf-healingReprocessingWelding
DOI:
10.14028/j.cnki.1003-3726.2022.10.010
文献标志码:
A
摘要:
传统网络聚合物结构稳定性能优异,然而一旦损伤不可自修复和再加工。目前大部分聚合所需单体来源于不可再生的煤和石油资源,导致不可再生资源危机加剧。类玻璃高分子具有可逆共价交联网络,在外界刺激下可以发生网络的重组,促使材料进行再加工和自修复。本次研究利用具有丰富环氧基团的可再生生物质资源环氧大豆油为基体,以含端疏基的2,2’-(1,4-亚苯基)-双(BDB)为交联剂,通过环氧-疏基"点击"反应固化获得环氧类玻璃高分子。研究交联剂用量对所得类玻璃高分子结构和性能的影响,当两原料的环氧基-疏基等摩尔比固化时,所得类玻璃高分子性能最优,具有优异的再加工和自修复(接近100%修复)以及焊接能力。
Abstract:
Traditional polymer with network structures possess stable and excellent performance, however, once damaged, they cannot be self-healing and reprocessing. Currently, most of the monomers originated from non-renewable coal and petroleum resources, which aggravates the crisis of non-renewable resources. Vitrimer featured with reversible covalent crosslinking networks can be rearranged its network under external stimulation to promote its reprocessing and self-healing capability. In this work, epoxy vitrimers were prepared by epoxy-thiol "click" reaction between epoxy soybean oil with abundant epoxy group as matrix and BDB (2,2’-(1,4-Phenylene)-bis) with -SH group as crosslinking agent. The effect of the content of crosslinking agent on the structure and properties of vitrimer polymer was studied. When the epoxy group and thiol was equivalent, the vitrimer polymer displayed the best properties (excellent reprocessing, self-healing, and welding ability).

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相似文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-8-28;改回日期:2022-2-16。
通讯作者:曾艳宁,E-mail:ynzeng@glut.edu.cn
更新日期/Last Update: 2022-09-20