journal article·2020-12-16

Biomimetic Boroxine-Based Multifunctional Thermosets via One-Pot Synthesis

Xi Yang, Meiling Guo, Yuanpeng Wu, Shishan Xue, Zhenyu Li, Hongwei Zhou, Andrew T. Smith, Luyi Sun

ACS Applied Materials & Interfaces· Volume 12· Issue 50
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Abstract

Boroxine-based thermosets with remarkable mechanical tunability, self-healing ability, recyclability, and adhesive strength are of significant importance in various applications. However, complex multistep reactions are often required to prepare such thermosets. Herein, a facile one-pot approach to synthesize boroxine-based malleable thermosets is proposed. Random copolymers with pendant boronic acid groups were synthesized from alkenyl monomers containing boronic acids [4-vinylphenylboronic acid (4-VPBA), 3-vinylphenylboronic acid, or 3-acrylamidophenylboronic acid] and octadecanoxy polyethylene glycol methacrylate. Then, the as-prepared copolymers were cured to form thermosets with boroxine bonds. The tensile strengths of the thermosets were tailored to range from 9.3 to 27.5 MPa by increasing the concentration of 4-VPBA. Moreover, because of the reversible nature of dynamic boroxine bonds (transformation between boroxines and boronic acids) induced by water, the thermosets exhibit remarkable self-healing efficiency (up to 99%), tunable mechanical properties, and excellent recyclability. Additionally, the thermosets also demonstrate superior adhesive strength (as high as 73.9 MPa) on different substrates.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Polymer composites and self-healing · Carbon dioxide utilization in catalysis · Photopolymerization techniques and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

The Center of Functional Materials for Working Fluids of Oil and Gas Field, School of New Energy and Materials, Southwest Petroleum University, Chengdu 610500, China

State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, Sichuan, China

Shaanxi Key Laboratory of Photoelectric Functional Materials and Devices, School of Materials and Chemical Engineering, Xi’an Technological University, Xi’an 710021, China

Polymer Program, Institute of Materials Science and Department of Chemical & Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States

Funding

Fok Ying Tung Education Foundation · State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation · State Key Laboratory of Petroleum Pollution Control · Innovation Fund for Postgraduates of Southwest Petroleum University · International Science and Technology Cooperation Project of Chengdu · Innovative Research Team of Southwest Petroleum University · Natural Science Foundation of Nanchong City · Foundation of Science and Technology Department of Sichuan Province

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