Room-Temperature Self-Healing and Recyclable Self-Crosslinked Isosorbide-Based Adhesive Bioelastomer

Recently, renewable bio-based materials have received more and more attention due to environmental issues such as global warming and ecosystem destruction. In the present work, a series of isosorbide-based bioelastomers poly(isosorbide carbonate-co-butanediol aliphatic esters)s (PICBAs) are synthesized by a facile and economical two-step melt polycondensation. Due to the slightly self-crosslinking reaction of isosorbide, PICBAs exhibit excellent tensile strength and self-healing ability, the mechanical properties of PICBAs can recover over 95% after 48 h under room temperature. In addition, PICBAs can stick different substances, such as glass, rubber, plastic, and stones, and show better adhesive performance than 3M commercially available double-sided tape. Consequently, isosorbide-based bioelastomers PICBAs are of great potential to be used as environmentally friendly pressure-sensitive adhesives (PSA) in the future. In this work, a series of isosorbide-based poly(carbonate esters)s PICBAs are synthesized by a facile and economical two-step melt polycondensation. Due to the slightly cross-linked structure and low glass transition temperature, these elastomers exhibit excellent self-healing, self-adhesive, and stretchable properties, which can be used as pressure-sensitive adhesives in the future. image