Self-healing, Welding, Reprocessing Boronic Ester Vitrimers Based on Epoxidized Soybean Oil

Yan-ning ZENG; Bin YANG; Wei-ming YANG

doi:10.14028/j.cnki.1003-3726.2022.10.010

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Self-healing, Welding, Reprocessing Boronic Ester Vitrimers Based on Epoxidized Soybean Oil

更新时间：2022-09-09

- Self-healing, Welding, Reprocessing Boronic Ester Vitrimers Based on Epoxidized Soybean Oil
- Polymer Bulletin Vol. 35, Issue 10, Pages: 87-98(2022)
- 作者机构：
  
  桂林理工大学材料科学与工程学院,桂林 541004
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2022.10.010
  CLC：
- Published：20 October 2022，
  
  Received：28 August 2021，
  
  Revised：16 February 2022，
扫描看全文
Yan-ning ZENG, Bin YANG, Wei-ming YANG. Self-healing, Welding, Reprocessing Boronic Ester Vitrimers Based on Epoxidized Soybean Oil. [J]. Polymer Bulletin 35(10):87-98(2022)
DOI：

Yan-ning ZENG, Bin YANG, Wei-ming YANG. Self-healing, Welding, Reprocessing Boronic Ester Vitrimers Based on Epoxidized Soybean Oil. [J]. Polymer Bulletin 35(10):87-98(2022) DOI： 10.14028/j.cnki.1003-3726.2022.10.010.

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[4-硫醇-1

2-二氧杂戊烷](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[4-mercaptan1

2-dioxaborolane]) 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).

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

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