%0 Journal Article %1 D3SC02549G %A Maksso, Isaac %A Samanta, Ramesh C. %A Zhan, Yifei %A Zhang, Kai %A Warratz, Svenja %A Ackermann, Lutz %D 2023 %I The Royal Society of Chemistry %J Chem. Sci. %K myown %P - %R 10.1039/D3SC02549G %T Polymer up-cycling by mangana-electrocatalytic C(sp3)–H azidation without directing groups %U http://dx.doi.org/10.1039/D3SC02549G %X The chemical up-cycling of polymers into value-added materials offers a unique opportunity to place plastic waste in a new value chain towards a circular economy. Herein, we report the selective up-cycling of polystyrenes and polyolefins to C(sp3)–H azidated materials under electrocatalytic conditions. The functionalized polymers were obtained with high retention of mass average molecular mass and high functionalization through chemo-selective mangana-electrocatalysis. Our strategy proved to be broadly applicable to a variety of homo- and copolymers. Polyethylene, polypropylene as well as post-consumer polystyrene materials were functionalized by this approach, thereby avoiding the use of hypervalent-iodine reagents in stoichiometric quantities by means of electrocatalysis. This study, hence, represents a chemical oxidant-free polymer functionalization by electro-oxidation. The electrocatalysis proved to be scalable, which highlights its unique feature for a green hydrogen economy by means of the hydrogen evolution reaction (HER).

@article{D3SC02549G, abstract = {The chemical up-cycling of polymers into value-added materials offers a unique opportunity to place plastic waste in a new value chain towards a circular economy. Herein{,} we report the selective up-cycling of polystyrenes and polyolefins to C(sp3)–H azidated materials under electrocatalytic conditions. The functionalized polymers were obtained with high retention of mass average molecular mass and high functionalization through chemo-selective mangana-electrocatalysis. Our strategy proved to be broadly applicable to a variety of homo- and copolymers. Polyethylene{,} polypropylene as well as post-consumer polystyrene materials were functionalized by this approach{,} thereby avoiding the use of hypervalent-iodine reagents in stoichiometric quantities by means of electrocatalysis. This study{,} hence{,} represents a chemical oxidant-free polymer functionalization by electro-oxidation. The electrocatalysis proved to be scalable{,} which highlights its unique feature for a green hydrogen economy by means of the hydrogen evolution reaction (HER).}, added-at = {2023-07-21T20:33:00.000+0200}, author = {Maksso, Isaac and Samanta, Ramesh C. and Zhan, Yifei and Zhang, Kai and Warratz, Svenja and Ackermann, Lutz}, biburl = {https://www.bibsonomy.org/bibtex/22118437b51421d185133947bacb254dd/rsamanta5}, doi = {10.1039/D3SC02549G}, interhash = {3384456990140ecab422c49a56ad2746}, intrahash = {2118437b51421d185133947bacb254dd}, journal = {Chem. Sci.}, keywords = {myown}, pages = {-}, publisher = {The Royal Society of Chemistry}, timestamp = {2023-07-21T20:33:00.000+0200}, title = {Polymer up-cycling by mangana-electrocatalytic C(sp3)–H azidation without directing groups}, url = {http://dx.doi.org/10.1039/D3SC02549G}, year = 2023 }