Electrophilic substitution in poly(ethylene terephthalate) waste for upcycling to functional metal–organic frameworks
In contrast to polymer-to-polymer recycling of waste polyethylene terephthalate (wPET), chemical upcycling into added-value molecules beyond terephthalic acid is a promising strategy. Among possible transformations, electrophilic substitution offers a direct path, yet has remained unrealized due to the electron-deficie...