Dynamic Covalent Chemistry in Self-Healing Polymers – Toward Smart, Sustainable Materials
Ethan Jimenez
Co-Presenters: Individual Presentation
College: The Dorothy and George Hennings College of Science, Mathematics and Technology
Major: Chemistry
Faculty Research Mentor: Matthew Mongelli
Abstract:
Dynamic Covalent Chemistry in Self-Healing Polymers – Toward Smart, Sustainable MaterialsEthan JimenezDepartment of Chemistry, Kean UniversityPURPOSESelf-healing polymers represent a breakthrough in material science by enabling autonomous repair of structural damage, reducing waste, and enhancing durability. These materials rely on dynamic covalent chemistry (DCC), where bonds can break and reform reversibly under external stimuli such as heat, pH, light, or mechanical stress. This study investigates how different dynamic covalent bonds, including Diels-Alder reactions, Retro Diels-Alder reactions imine bonds, and disulfide linkages, contribute to self-repair efficiency. Understanding these mechanisms can advance applications in biomedicine, aerospace, and sustainable materials.METHODSThis research explores the self-healing capabilities of DCC-based polymers by analyzing bond reformation and mechanical recovery using Infrared Spectroscopy (IR), Nuclear Magnetic Resonance (NMR), High-Performance Liquid Chromatography (HPLC), and Electrochemical Impedance Spectroscopy (EIS). These techniques allow for precise tracking of bond dissociation and reformation under different environmental conditions.CONCLUSIONPreliminary results indicate that DCC-based self-healing polymers restore their mechanical integrity after multiple damage cycles, demonstrating their potential for long-term applications. The efficiency of self-healing depends on bond type, environmental factors, and polymer composition.SIGNIFICANCE/NOVELTYThis research contributes to the development of reprocessable, damage-resistant, and sustainable materials. By optimizing self-healing polymer networks, these materials can revolutionize industrial applications, biomedical implants, and aerospace coatings, reducing repair costs and extending product lifespans.