J. Chem. Edu.

Self -repairing materials are a new type of functional materials that have developed rapidly in recent years. It can automatically repair damage and restore its functions through physical or chemical effects. Essence Because of its rich functionality is closely related to many areas of the national economy, it has broad application prospects in high -tech fields such as military, aerospace, and has become a hot spot in the international international competition. It is a new subject field that the international academic community values. However, most of these advanced materials are focused on scientific research, and they are rarely involved in the field of university classrooms or experimental teaching.

Recently, the team of Associate Professor Luo Qianfu, the School of Chemistry and Molecular Engineering of East China University of Technology, optimized the design of the undergraduate teaching, simplified the composition method of materials, integrated the test method, and used the virtual simulation experimental platform to from classroom teaching and experimental teaching. Introduce the teaching content of self -cultivation function materials from the frontier of scientific research with virtual simulation teaching. It is successfully applied to the innovative practice of undergraduate teaching, allowing students to learn and explore such frontiers in a short period of time. Materials, better realize the connection between undergraduate teaching and scientific research, have achieved good results. Recently, the relevant achievements were published in the journal of chemistry education under the American Chemistry Association (J. Chem. Edu.2022, Doi: 10.1021/ACS.JCHEMED.2C00463).

Figure 1. Preparation and performance teaching design based on self -repairing multifunctional materials based on sulfuric acid

This teaching design does not require complicated reaction conditions and reagents. Only natural small molecules and a small amount of cheap commercial reagents are used to easily and quickly prepare a large -scale multifunctional self -repairing material, which is very suitable for undergraduate teaching. This material has fast self -healing ability, and reusable adhesive and excellent stretching performance. This convenient and diverse feature of preparation has attracted students' interest in dynamic aggregation, super molecular hydrogen bond interaction and self -repair, etc., and further inspire them to understand their mechanisms and applications in depth. At the same time, the knowledge of the structured characteristics of the nuclear magnetic and infrared in the chemistry class has been applied and improved in the teaching, and the relevant technical means used in scientific research also have the opportunity to learn and practice. This project provides a attractive platform for the teaching related to multi -function self -repairing materials. Bridge is set up between undergraduate teaching and scientific research, citing scientific research to improve the quality of teaching, and make up for the relatively old shortcomings of the teaching content in the existing textbooks Further stimulate students 'interest in learning, enlighten scientific thinking, broaden academic horizons, help students comprehensively use and consolidate the knowledge learned from textbooks, from science to cultivation, and lays a good foundation for students' future career positioning.

Figure 2. Virtual simulation experiment platform and self -repair mechanism animation display

While introducing offline classrooms and laboratory teaching, the team of Associate Professor Luo Qianfu also further used modern information technology to present the complex self -repair mechanism and research background production as online teaching resources. Self -repairing the preparation and testing of super molecular materials "virtual simulation experimental teaching platform, and obtained computer software copyrights with independent intellectual property rights. With the virtual simulation method of the platform, the team members make students' knowledge points, difficult to master or need to be more proficient for a long time, and make virtual simulation resources so that students can practice online repeatedly. In a short period of time, students can learn and explore such scientific cutting -edge knowledge efficiently. In the past three years, this virtual simulation experimental platform has served more than a thousand students with chemistry -related majors in the school, exercised the ability of students, and expanded the knowledge space. Through the exercise and inspiration of this virtual simulation experimental platform, many students have achieved excellent results in national and provincial and municipal chemical -related competitions.

Associate Professor Luo Qianfu is the first batch of Huangda Nian -style teachers in East China University of Technology, and the backbone members of the "Engineering Chemistry Series Course Innovation Education Teacher Team". There are many textbooks and academic monographs, published more than 10 teaching, teaching and research papers and more than 50 SCI scientific research papers in the core journals. He has been committed to transforming cutting -edge scientific research results in time to undergraduate teaching practice. The scientific research results involved in this article were developed by Dynamic Chemical Materials developed by East China University of Technology Feilin Garin Nobel Scientist Joint Research Center, and Professor Qu Dahui team. The project also received the careful guidance and strong support of Academician Tian He, Professor Zhu Weihong, and Professor Qu Dahui. It is another result of the Ferrin and Nobel Scientists Joint Research Center's scientific research and feedback teaching and science and education integration leading first -class undergraduate teaching.

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