Spiropyran-based supramolecular elastomers with tuneable mechanical properties and switchable dielectric permittivity.

ABSTRACT: Silicone elastomers are widely used in various applications, each demanding different properties and functionalities. To be used in such a broad spectrum, silicones with easily tunable or switchable properties are needed. We showed this is achievable with novel metallo-supramolecular polysiloxanes. Poly(dimethylsiloxane-co-3-aminopropylmethylsiloxane) was reacted with an epoxy-modified spiropyran (SP) in the presence of ZnCl₂ as a catalyst. We have found that the ZnCl₂ allows the formation of metallo-supramolecular polymers with tuneable mechanical propertiers. The influence of the amount of ZnCl₂ used on the thermal and mechanical properties of the synthesized materials was investigated by DSC, tensile test, and DMA. The ability of SP to act not onl

SUBMITTER: Beccard MS 

PROVIDER: S-EPMC11616703 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature