Chemically Recyclable and Tunable Polyolefin-Like Multiblock Copolymer Adhesives.

ABSTRACT: Adhesives are important in creating multilayer products, such as in packaging and construction. Most current hot-melt adhesives such as poly(ethylene-co-vinyl acetate) (EVA) and polyurethanes lack chemical recyclability and do not easily de-bond, complicating recycling. Here, we achieved tunable adhesive properties of chemically recyclable polyolefin-like multiblock copolymers through regulating the incorporation of crystalline hard blocks, amorphous soft blocks, and ester content highlighted by adhesive strengths up to 6.80 MPa. We further demonstrated applications of these adhesives in multi-layer films and showed that the adhesives can be readily de-bonded, recovered, and chemically recycled. Overall, this study into structure-property relationships, including effects of crystallinity,

SUBMITTER: Zhao Y 

PROVIDER: S-EPMC12535384 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature