基于可逆动态B–O键的自修复聚合物和水凝胶的最新进展：硼酸酯/硼酸酯，硼砂和苯并沙硼酸酯,Journal of Materials Chemistry A

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基于可逆动态B–O键的自修复聚合物和水凝胶的最新进展：硼酸酯/硼酸酯，硼砂和苯并沙硼酸酯
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2021-5-18 , DOI: 10.1039/d1ta02308j
Seungwan Cho _{1,

2,

3,

4} , Sung Yeon Hwang _{1,

2,

3,

4,

5} , Dongyeop X. Oh _{1,

2,

3,

4,

5} , Jeyoung Park _{1,

2,

3,

4,

5}

Affiliation

固有自愈聚合物材料是物质缓解外部应力和极端损伤后恢复其原来的机械性能通过聚合物结构中的动态共价键或超分子基序的可逆结合。硼酸和二醇之间形成的基于硼酸酯的动态共价键赋予水凝胶，有机凝胶，弹性体和塑料以优异的自修复性能，这取决于相应聚合物的特性。另外，这些键响应于生物信号和生物材料的变化，例如亲水性，pH和葡萄糖的存在，在化学/物理结构中引起内部重组。硼酸酯基聚合物对刺激的多反应性以及自我修复，可注射性和生物相容性，导致了多项技术成就，可应用于生物医学领域，包括药物输送，医疗黏附，生物植入物，和医疗保健监控。这篇综述概述了基于可逆B–O键的各种自修复聚合物材料，重点介绍了硼/硼酸酯，硼砂和苯并硼硼烷及其性质，对外部刺激的反应和应用。

"点击查看英文标题和摘要"

Recent progress in self-healing polymers and hydrogels based on reversible dynamic B–O bonds: boronic/boronate esters, borax, and benzoxaborole

Intrinsic self-healing polymeric materials are substances that relieve external stress and restore their original mechanical properties after extreme damage via dynamic covalent bonding in the polymeric structure or the reversible association of supramolecular motifs. Boronic ester-based dynamic covalent bonds formed between boronic acids and diols impart excellent self-healing properties to the hydrogels, organic gels, elastomers, and plastics depending on the characteristics of the corresponding polymer. In addition, these bonds induce internal reorganization in the chemical/physical structure in response to changes in the biological signals and biomaterials, such as hydrophilicity, pH, and the presence of glucose. This multi-responsiveness to stimuli as well as the self-healing, injectability, and biocompatibility of boronic ester-based polymers have led to several technological achievements with applicability in biomedical fields, including drug delivery, medical adhesion, bioimplants, and healthcare monitoring. This review provides an overview of various self-healing polymeric materials based on reversible B–O bonds, with a focus on boronic/boronate esters, borax, and benzoxaborole and their properties, responses to external stimuli, and applications.

更新日期：2021-05-24

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