Tailoring substrate adhesion <i>via</i> flexible chain architecture design in benzoheterocycle polyimide protective coatings.

ABSTRACT: Benzoheterocycle polyimides (PIs) demonstrate exceptional metal substrate adhesion, positioning them as high-performance alternatives to conventional heterogeneous adhesives. These materials significantly enhance the weather resistance of flexible batteries and facilitate the development of thinner and lighter PI-based aluminum-plastic flexible packaging. Through molecular engineering of benzoheterocycle PI backbones, a series of ternary copolyimides (BIBOPIs) were synthesized utilizing four structurally distinct flexible diamine monomers. The thermodynamic properties, solvent resistance, water absorption, and coating adhesion of BIBOPIs were systematically evaluated. The distinctive molecular architectures of flexible diamines impart unique physicochemical properties to BIBOPIs. The light

SUBMITTER: Guo F 

PROVIDER: S-EPMC12536869 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature