Thermoreversible Cross-Linked Rubber Prepared via Melt Blending and Its Nanocomposites.

ABSTRACT: A covalent adaptable network based on the thermoreversible cross-linking of an ethylene-propylene rubber through Diels-Alder (DA) reaction was prepared for the first time through melt blending as an environmental-friendly alternative to traditional synthesis in organic solvents. Functionalization of the rubber with furan groups was performed in a melt blender and subsequently mixed with different amounts of bismaleimide in a microextruder. Cross-linking was confirmed by FT-IR spectroscopy and insolubility at room temperature, while its thermoreversible character was confirmed by a solubility test at 110 °C and by remolding via hot-pressing. Mechanical and thermomechanical properties of the obtained rubbers showed potential to compete with conventionally cross-linked elastomers, with stiffn

SUBMITTER: Cantamessa F 

PROVIDER: S-EPMC9274616 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature